diff --git a/comtool/api/quiwidget.cpp b/comtool/api/quiwidget.cpp
index a4524c3..1fe4ced 100644
--- a/comtool/api/quiwidget.cpp
+++ b/comtool/api/quiwidget.cpp
@@ -2968,103 +2968,117 @@ QByteArray QUIHelper::getCRCCode(const QByteArray &data)
     return QUIHelper::ushortToByteRec(result);
 }
 
+static QMap<char, QString> listChar;
+void QUIHelper::initAsciiStr()
+{
+    //0x20为空格,空格以下都是不可见字符
+    if (listChar.count() == 0) {
+        listChar.insert(0, "\\NUL");
+        listChar.insert(1, "\\SOH");
+        listChar.insert(2, "\\STX");
+        listChar.insert(3, "\\ETX");
+        listChar.insert(4, "\\EOT");
+        listChar.insert(5, "\\ENQ");
+        listChar.insert(6, "\\ACK");
+        listChar.insert(7, "\\BEL");
+        listChar.insert(8, "\\BS");
+        listChar.insert(9, "\\HT");
+        listChar.insert(10, "\\LF");
+        listChar.insert(11, "\\VT");
+        listChar.insert(12, "\\FF");
+        listChar.insert(13, "\\CR");
+        listChar.insert(14, "\\SO");
+        listChar.insert(15, "\\SI");
+        listChar.insert(16, "\\DLE");
+        listChar.insert(17, "\\DC1");
+        listChar.insert(18, "\\DC2");
+        listChar.insert(19, "\\DC3");
+        listChar.insert(20, "\\DC4");
+        listChar.insert(21, "\\NAK");
+        listChar.insert(22, "\\SYN");
+        listChar.insert(23, "\\ETB");
+        listChar.insert(24, "\\CAN");
+        listChar.insert(25, "\\EM");
+        listChar.insert(26, "\\SUB");
+        listChar.insert(27, "\\ESC");
+        listChar.insert(28, "\\FS");
+        listChar.insert(29, "\\GS");
+        listChar.insert(30, "\\RS");
+        listChar.insert(31, "\\US");
+        listChar.insert(0x5C, "\\");
+        listChar.insert(0x7F, "\\DEL");
+    }
+}
+
 QString QUIHelper::byteArrayToAsciiStr(const QByteArray &data)
 {
+    initAsciiStr();
     QString temp;
     int len = data.size();
-    for (int i = 0; i < len; i++) {
-        //0x20为空格,空格以下都是不可见字符
-        char b = data.at(i);
 
-        if (0x00 == b) {
-            temp += QString("\\NUL");
-        } else if (0x01 == b) {
-            temp += QString("\\SOH");
-        } else if (0x02 == b) {
-            temp += QString("\\STX");
-        } else if (0x03 == b) {
-            temp += QString("\\ETX");
-        } else if (0x04 == b) {
-            temp += QString("\\EOT");
-        } else if (0x05 == b) {
-            temp += QString("\\ENQ");
-        } else if (0x06 == b) {
-            temp += QString("\\ACK");
-        } else if (0x07 == b) {
-            temp += QString("\\BEL");
-        } else if (0x08 == b) {
-            temp += QString("\\BS");
-        } else if (0x09 == b) {
-            temp += QString("\\HT");
-        } else if (0x0A == b) {
-            temp += QString("\\LF");
-        } else if (0x0B == b) {
-            temp += QString("\\VT");
-        } else if (0x0C == b) {
-            temp += QString("\\FF");
-        } else if (0x0D == b) {
-            temp += QString("\\CR");
-        } else if (0x0E == b) {
-            temp += QString("\\SO");
-        } else if (0x0F == b) {
-            temp += QString("\\SI");
-        } else if (0x10 == b) {
-            temp += QString("\\DLE");
-        } else if (0x11 == b) {
-            temp += QString("\\DC1");
-        } else if (0x12 == b) {
-            temp += QString("\\DC2");
-        } else if (0x13 == b) {
-            temp += QString("\\DC3");
-        } else if (0x14 == b) {
-            temp += QString("\\DC4");
-        } else if (0x15 == b) {
-            temp += QString("\\NAK");
-        } else if (0x16 == b) {
-            temp += QString("\\SYN");
-        } else if (0x17 == b) {
-            temp += QString("\\ETB");
-        } else if (0x18 == b) {
-            temp += QString("\\CAN");
-        } else if (0x19 == b) {
-            temp += QString("\\EM");
-        } else if (0x1A == b) {
-            temp += QString("\\SUB");
-        } else if (0x1B == b) {
-            temp += QString("\\ESC");
-        } else if (0x1C == b) {
-            temp += QString("\\FS");
-        } else if (0x1D == b) {
-            temp += QString("\\GS");
-        } else if (0x1E == b) {
-            temp += QString("\\RS");
-        } else if (0x1F == b) {
-            temp += QString("\\US");
-        } else if (0x7F == b) {
-            temp += QString("\\x7F");
-        } else if (0x5C == b) {
-            temp += QString("\\x5C");
-        } else if (0x20 >= b) {
-            temp += QString("\\x%1").arg(decimalToStrHex((quint8)b));
+    for (int i = 0; i < len; i++) {        
+        char byte = data.at(i);
+        QString value = listChar.value(byte);
+        if (!value.isEmpty()) {
+        } else if (byte >= 0 && byte <= 0x7F) {
+            value = QString("%1").arg(byte);
         } else {
-            temp += QString("%1").arg(b);
+            value = decimalToStrHex((quint8)byte);
+            value = QString("\\x%1").arg(value.toUpper());
         }
+
+        temp += value;
     }
 
     return temp.trimmed();
 }
 
-QByteArray QUIHelper::hexStrToByteArray(const QString &str)
+QByteArray QUIHelper::asciiStrToByteArray(const QString &data)
+{
+    initAsciiStr();
+    QByteArray buffer;
+    QStringList list = data.split("\\");
+
+    int count = list.count();
+    for (int i = 1; i < count; i++) {
+        QString str = list.at(i);
+        int key = 0;
+        if (str.contains("x")) {
+            key = strHexToDecimal(str.mid(1, 2));
+        } else {
+            key = listChar.key("\\" + str);
+        }
+
+        buffer.append(key);
+    }
+
+    return buffer;
+}
+
+char QUIHelper::hexStrToChar(char data)
+{
+    if ((data >= '0') && (data <= '9')) {
+        return data - 0x30;
+    } else if ((data >= 'A') && (data <= 'F')) {
+        return data - 'A' + 10;
+    } else if ((data >= 'a') && (data <= 'f')) {
+        return data - 'a' + 10;
+    } else {
+        return (-1);
+    }
+}
+
+QByteArray QUIHelper::hexStrToByteArray(const QString &data)
 {
     QByteArray senddata;
     int hexdata, lowhexdata;
     int hexdatalen = 0;
-    int len = str.length();
+    int len = data.length();
     senddata.resize(len / 2);
     char lstr, hstr;
 
     for (int i = 0; i < len;) {
-        hstr = str.at(i).toLatin1();
+        hstr = data.at(i).toLatin1();
         if (hstr == ' ') {
             i++;
             continue;
@@ -3075,9 +3089,9 @@ QByteArray QUIHelper::hexStrToByteArray(const QString &str)
             break;
         }
 
-        lstr = str.at(i).toLatin1();
-        hexdata = convertHexChar(hstr);
-        lowhexdata = convertHexChar(lstr);
+        lstr = data.at(i).toLatin1();
+        hexdata = hexStrToChar(hstr);
+        lowhexdata = hexStrToChar(lstr);
 
         if ((hexdata == 16) || (lowhexdata == 16)) {
             break;
@@ -3094,300 +3108,6 @@ QByteArray QUIHelper::hexStrToByteArray(const QString &str)
     return senddata;
 }
 
-char QUIHelper::convertHexChar(char ch)
-{
-    if ((ch >= '0') && (ch <= '9')) {
-        return ch - 0x30;
-    } else if ((ch >= 'A') && (ch <= 'F')) {
-        return ch - 'A' + 10;
-    } else if ((ch >= 'a') && (ch <= 'f')) {
-        return ch - 'a' + 10;
-    } else {
-        return (-1);
-    }
-}
-
-QByteArray QUIHelper::asciiStrToByteArray(const QString &str)
-{
-    QByteArray buffer;
-    int len = str.length();
-    QString letter;
-    QString hex;
-
-    for (int i = 0; i < len; i++) {
-        letter = str.at(i);
-
-        if (letter == "\\") {
-            i++;
-            letter = str.mid(i, 1);
-
-            if (letter == "x") {
-                i++;
-                hex = str.mid(i, 2);
-                buffer.append(strHexToDecimal(hex));
-                i++;
-                continue;
-            } else if (letter == "N") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "U") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "L") {           //NUL=0x00
-                        buffer.append((char)0x00);
-                        continue;
-                    }
-                } else if (hex == "A") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "K") {           //NAK=0x15
-                        buffer.append(0x15);
-                        continue;
-                    }
-                }
-            } else if (letter == "S") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "O") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "H") {           //SOH=0x01
-                        buffer.append(0x01);
-                        continue;
-                    } else {                    //SO=0x0E
-                        buffer.append(0x0E);
-                        i--;
-                        continue;
-                    }
-                } else if (hex == "T") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "X") {           //STX=0x02
-                        buffer.append(0x02);
-                        continue;
-                    }
-                } else if (hex == "I") {        //SI=0x0F
-                    buffer.append(0x0F);
-                    continue;
-                } else if (hex == "Y") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "N") {           //SYN=0x16
-                        buffer.append(0x16);
-                        continue;
-                    }
-                } else if (hex == "U") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "B") {           //SUB=0x1A
-                        buffer.append(0x1A);
-                        continue;
-                    }
-                }
-            } else if (letter == "E") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "T") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "X") {           //ETX=0x03
-                        buffer.append(0x03);
-                        continue;
-                    } else if (hex == "B") {    //ETB=0x17
-                        buffer.append(0x17);
-                        continue;
-                    }
-                } else if (hex == "O") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "T") {           //EOT=0x04
-                        buffer.append(0x04);
-                        continue;
-                    }
-                } else if (hex == "N") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "Q") {           //ENQ=0x05
-                        buffer.append(0x05);
-                        continue;
-                    }
-                } else if (hex == "M") {        //EM=0x19
-                    buffer.append(0x19);
-                    continue;
-                } else if (hex == "S") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "C") {           //ESC=0x1B
-                        buffer.append(0x1B);
-                        continue;
-                    }
-                }
-            } else if (letter == "A") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "C") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "K") {           //ACK=0x06
-                        buffer.append(0x06);
-                        continue;
-                    }
-                }
-            } else if (letter == "B") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "E") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "L") {           //BEL=0x07
-                        buffer.append(0x07);
-                        continue;
-                    }
-                } else if (hex == "S") {        //BS=0x08
-                    buffer.append(0x08);
-                    continue;
-                }
-            } else if (letter == "C") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "R") {               //CR=0x0D
-                    buffer.append(0x0D);
-                    continue;
-                } else if (hex == "A") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "N") {           //CAN=0x18
-                        buffer.append(0x18);
-                        continue;
-                    }
-                }
-            } else if (letter == "D") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "L") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "E") {           //DLE=0x10
-                        buffer.append(0x10);
-                        continue;
-                    }
-                } else if (hex == "C") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "1") {           //DC1=0x11
-                        buffer.append(0x11);
-                        continue;
-                    } else if (hex == "2") {    //DC2=0x12
-                        buffer.append(0x12);
-                        continue;
-                    } else if (hex == "3") {    //DC3=0x13
-                        buffer.append(0x13);
-                        continue;
-                    } else if (hex == "4") {    //DC2=0x14
-                        buffer.append(0x14);
-                        continue;
-                    }
-                }
-            } else if (letter == "F") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "F") {               //FF=0x0C
-                    buffer.append(0x0C);
-                    continue;
-                } else if (hex == "S") {        //FS=0x1C
-                    buffer.append(0x1C);
-                    continue;
-                }
-            } else if (letter == "H") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "T") {               //HT=0x09
-                    buffer.append(0x09);
-                    continue;
-                }
-            } else if (letter == "L") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "F") {               //LF=0x0A
-                    buffer.append(0x0A);
-                    continue;
-                }
-            } else if (letter == "G") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "S") {               //GS=0x1D
-                    buffer.append(0x1D);
-                    continue;
-                }
-            } else if (letter == "R") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "S") {               //RS=0x1E
-                    buffer.append(0x1E);
-                    continue;
-                }
-            } else if (letter == "U") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "S") {               //US=0x1F
-                    buffer.append(0x1F);
-                    continue;
-                }
-            } else if (letter == "V") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "T") {               //VT=0x0B
-                    buffer.append(0x0B);
-                    continue;
-                }
-            } else if (letter == "\\") {
-                //如果连着的是多个\\则对应添加\对应的16进制0x5C
-                buffer.append(0x5C);
-                continue;
-            } else {
-                //将对应的\[前面的\\也要加入
-                buffer.append(0x5C);
-                buffer.append(letter.toLatin1());
-                continue;
-            }
-        }
-
-        buffer.append(str.mid(i, 1).toLatin1());
-
-    }
-
-    return buffer;
-}
-
 QString QUIHelper::byteArrayToHexStr(const QByteArray &data)
 {
     QString temp = "";
diff --git a/comtool/api/quiwidget.h b/comtool/api/quiwidget.h
index 589f8d6..3b93958 100644
--- a/comtool/api/quiwidget.h
+++ b/comtool/api/quiwidget.h
@@ -716,15 +716,14 @@ public:
     static quint16 getModbus16(quint8 *data, int len);
     static QByteArray getCRCCode(const QByteArray &data);
 
-    //字节数组转Ascii字符串
+    //字节数组与Ascii字符串互转
+    static void initAsciiStr();
     static QString byteArrayToAsciiStr(const QByteArray &data);
-    //16进制字符串转字节数组
-    static QByteArray hexStrToByteArray(const QString &str);
-    static char convertHexChar(char ch);
+    static QByteArray asciiStrToByteArray(const QString &data);
 
-    //Ascii字符串转字节数组
-    static QByteArray asciiStrToByteArray(const QString &str);
-    //字节数组转16进制字符串
+    //16进制字符串与字节数组互转
+    static char hexStrToChar(char data);
+    static QByteArray hexStrToByteArray(const QString &data);
     static QString byteArrayToHexStr(const QByteArray &data);
 
     //获取保存的文件
diff --git a/comtool/form/frmcomtool.cpp b/comtool/form/frmcomtool.cpp
index 2cd21af..35cbdb1 100644
--- a/comtool/form/frmcomtool.cpp
+++ b/comtool/form/frmcomtool.cpp
@@ -366,7 +366,6 @@ void frmComTool::sendData(QString data)
     }
 
     QByteArray buffer;
-
     if (ui->ckHexSend->isChecked()) {
         buffer = QUIHelper::hexStrToByteArray(data);
     } else {
diff --git a/nettool/api/quiwidget.cpp b/nettool/api/quiwidget.cpp
index a4524c3..1fe4ced 100644
--- a/nettool/api/quiwidget.cpp
+++ b/nettool/api/quiwidget.cpp
@@ -2968,103 +2968,117 @@ QByteArray QUIHelper::getCRCCode(const QByteArray &data)
     return QUIHelper::ushortToByteRec(result);
 }
 
+static QMap<char, QString> listChar;
+void QUIHelper::initAsciiStr()
+{
+    //0x20为空格,空格以下都是不可见字符
+    if (listChar.count() == 0) {
+        listChar.insert(0, "\\NUL");
+        listChar.insert(1, "\\SOH");
+        listChar.insert(2, "\\STX");
+        listChar.insert(3, "\\ETX");
+        listChar.insert(4, "\\EOT");
+        listChar.insert(5, "\\ENQ");
+        listChar.insert(6, "\\ACK");
+        listChar.insert(7, "\\BEL");
+        listChar.insert(8, "\\BS");
+        listChar.insert(9, "\\HT");
+        listChar.insert(10, "\\LF");
+        listChar.insert(11, "\\VT");
+        listChar.insert(12, "\\FF");
+        listChar.insert(13, "\\CR");
+        listChar.insert(14, "\\SO");
+        listChar.insert(15, "\\SI");
+        listChar.insert(16, "\\DLE");
+        listChar.insert(17, "\\DC1");
+        listChar.insert(18, "\\DC2");
+        listChar.insert(19, "\\DC3");
+        listChar.insert(20, "\\DC4");
+        listChar.insert(21, "\\NAK");
+        listChar.insert(22, "\\SYN");
+        listChar.insert(23, "\\ETB");
+        listChar.insert(24, "\\CAN");
+        listChar.insert(25, "\\EM");
+        listChar.insert(26, "\\SUB");
+        listChar.insert(27, "\\ESC");
+        listChar.insert(28, "\\FS");
+        listChar.insert(29, "\\GS");
+        listChar.insert(30, "\\RS");
+        listChar.insert(31, "\\US");
+        listChar.insert(0x5C, "\\");
+        listChar.insert(0x7F, "\\DEL");
+    }
+}
+
 QString QUIHelper::byteArrayToAsciiStr(const QByteArray &data)
 {
+    initAsciiStr();
     QString temp;
     int len = data.size();
-    for (int i = 0; i < len; i++) {
-        //0x20为空格,空格以下都是不可见字符
-        char b = data.at(i);
 
-        if (0x00 == b) {
-            temp += QString("\\NUL");
-        } else if (0x01 == b) {
-            temp += QString("\\SOH");
-        } else if (0x02 == b) {
-            temp += QString("\\STX");
-        } else if (0x03 == b) {
-            temp += QString("\\ETX");
-        } else if (0x04 == b) {
-            temp += QString("\\EOT");
-        } else if (0x05 == b) {
-            temp += QString("\\ENQ");
-        } else if (0x06 == b) {
-            temp += QString("\\ACK");
-        } else if (0x07 == b) {
-            temp += QString("\\BEL");
-        } else if (0x08 == b) {
-            temp += QString("\\BS");
-        } else if (0x09 == b) {
-            temp += QString("\\HT");
-        } else if (0x0A == b) {
-            temp += QString("\\LF");
-        } else if (0x0B == b) {
-            temp += QString("\\VT");
-        } else if (0x0C == b) {
-            temp += QString("\\FF");
-        } else if (0x0D == b) {
-            temp += QString("\\CR");
-        } else if (0x0E == b) {
-            temp += QString("\\SO");
-        } else if (0x0F == b) {
-            temp += QString("\\SI");
-        } else if (0x10 == b) {
-            temp += QString("\\DLE");
-        } else if (0x11 == b) {
-            temp += QString("\\DC1");
-        } else if (0x12 == b) {
-            temp += QString("\\DC2");
-        } else if (0x13 == b) {
-            temp += QString("\\DC3");
-        } else if (0x14 == b) {
-            temp += QString("\\DC4");
-        } else if (0x15 == b) {
-            temp += QString("\\NAK");
-        } else if (0x16 == b) {
-            temp += QString("\\SYN");
-        } else if (0x17 == b) {
-            temp += QString("\\ETB");
-        } else if (0x18 == b) {
-            temp += QString("\\CAN");
-        } else if (0x19 == b) {
-            temp += QString("\\EM");
-        } else if (0x1A == b) {
-            temp += QString("\\SUB");
-        } else if (0x1B == b) {
-            temp += QString("\\ESC");
-        } else if (0x1C == b) {
-            temp += QString("\\FS");
-        } else if (0x1D == b) {
-            temp += QString("\\GS");
-        } else if (0x1E == b) {
-            temp += QString("\\RS");
-        } else if (0x1F == b) {
-            temp += QString("\\US");
-        } else if (0x7F == b) {
-            temp += QString("\\x7F");
-        } else if (0x5C == b) {
-            temp += QString("\\x5C");
-        } else if (0x20 >= b) {
-            temp += QString("\\x%1").arg(decimalToStrHex((quint8)b));
+    for (int i = 0; i < len; i++) {        
+        char byte = data.at(i);
+        QString value = listChar.value(byte);
+        if (!value.isEmpty()) {
+        } else if (byte >= 0 && byte <= 0x7F) {
+            value = QString("%1").arg(byte);
         } else {
-            temp += QString("%1").arg(b);
+            value = decimalToStrHex((quint8)byte);
+            value = QString("\\x%1").arg(value.toUpper());
         }
+
+        temp += value;
     }
 
     return temp.trimmed();
 }
 
-QByteArray QUIHelper::hexStrToByteArray(const QString &str)
+QByteArray QUIHelper::asciiStrToByteArray(const QString &data)
+{
+    initAsciiStr();
+    QByteArray buffer;
+    QStringList list = data.split("\\");
+
+    int count = list.count();
+    for (int i = 1; i < count; i++) {
+        QString str = list.at(i);
+        int key = 0;
+        if (str.contains("x")) {
+            key = strHexToDecimal(str.mid(1, 2));
+        } else {
+            key = listChar.key("\\" + str);
+        }
+
+        buffer.append(key);
+    }
+
+    return buffer;
+}
+
+char QUIHelper::hexStrToChar(char data)
+{
+    if ((data >= '0') && (data <= '9')) {
+        return data - 0x30;
+    } else if ((data >= 'A') && (data <= 'F')) {
+        return data - 'A' + 10;
+    } else if ((data >= 'a') && (data <= 'f')) {
+        return data - 'a' + 10;
+    } else {
+        return (-1);
+    }
+}
+
+QByteArray QUIHelper::hexStrToByteArray(const QString &data)
 {
     QByteArray senddata;
     int hexdata, lowhexdata;
     int hexdatalen = 0;
-    int len = str.length();
+    int len = data.length();
     senddata.resize(len / 2);
     char lstr, hstr;
 
     for (int i = 0; i < len;) {
-        hstr = str.at(i).toLatin1();
+        hstr = data.at(i).toLatin1();
         if (hstr == ' ') {
             i++;
             continue;
@@ -3075,9 +3089,9 @@ QByteArray QUIHelper::hexStrToByteArray(const QString &str)
             break;
         }
 
-        lstr = str.at(i).toLatin1();
-        hexdata = convertHexChar(hstr);
-        lowhexdata = convertHexChar(lstr);
+        lstr = data.at(i).toLatin1();
+        hexdata = hexStrToChar(hstr);
+        lowhexdata = hexStrToChar(lstr);
 
         if ((hexdata == 16) || (lowhexdata == 16)) {
             break;
@@ -3094,300 +3108,6 @@ QByteArray QUIHelper::hexStrToByteArray(const QString &str)
     return senddata;
 }
 
-char QUIHelper::convertHexChar(char ch)
-{
-    if ((ch >= '0') && (ch <= '9')) {
-        return ch - 0x30;
-    } else if ((ch >= 'A') && (ch <= 'F')) {
-        return ch - 'A' + 10;
-    } else if ((ch >= 'a') && (ch <= 'f')) {
-        return ch - 'a' + 10;
-    } else {
-        return (-1);
-    }
-}
-
-QByteArray QUIHelper::asciiStrToByteArray(const QString &str)
-{
-    QByteArray buffer;
-    int len = str.length();
-    QString letter;
-    QString hex;
-
-    for (int i = 0; i < len; i++) {
-        letter = str.at(i);
-
-        if (letter == "\\") {
-            i++;
-            letter = str.mid(i, 1);
-
-            if (letter == "x") {
-                i++;
-                hex = str.mid(i, 2);
-                buffer.append(strHexToDecimal(hex));
-                i++;
-                continue;
-            } else if (letter == "N") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "U") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "L") {           //NUL=0x00
-                        buffer.append((char)0x00);
-                        continue;
-                    }
-                } else if (hex == "A") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "K") {           //NAK=0x15
-                        buffer.append(0x15);
-                        continue;
-                    }
-                }
-            } else if (letter == "S") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "O") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "H") {           //SOH=0x01
-                        buffer.append(0x01);
-                        continue;
-                    } else {                    //SO=0x0E
-                        buffer.append(0x0E);
-                        i--;
-                        continue;
-                    }
-                } else if (hex == "T") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "X") {           //STX=0x02
-                        buffer.append(0x02);
-                        continue;
-                    }
-                } else if (hex == "I") {        //SI=0x0F
-                    buffer.append(0x0F);
-                    continue;
-                } else if (hex == "Y") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "N") {           //SYN=0x16
-                        buffer.append(0x16);
-                        continue;
-                    }
-                } else if (hex == "U") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "B") {           //SUB=0x1A
-                        buffer.append(0x1A);
-                        continue;
-                    }
-                }
-            } else if (letter == "E") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "T") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "X") {           //ETX=0x03
-                        buffer.append(0x03);
-                        continue;
-                    } else if (hex == "B") {    //ETB=0x17
-                        buffer.append(0x17);
-                        continue;
-                    }
-                } else if (hex == "O") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "T") {           //EOT=0x04
-                        buffer.append(0x04);
-                        continue;
-                    }
-                } else if (hex == "N") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "Q") {           //ENQ=0x05
-                        buffer.append(0x05);
-                        continue;
-                    }
-                } else if (hex == "M") {        //EM=0x19
-                    buffer.append(0x19);
-                    continue;
-                } else if (hex == "S") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "C") {           //ESC=0x1B
-                        buffer.append(0x1B);
-                        continue;
-                    }
-                }
-            } else if (letter == "A") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "C") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "K") {           //ACK=0x06
-                        buffer.append(0x06);
-                        continue;
-                    }
-                }
-            } else if (letter == "B") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "E") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "L") {           //BEL=0x07
-                        buffer.append(0x07);
-                        continue;
-                    }
-                } else if (hex == "S") {        //BS=0x08
-                    buffer.append(0x08);
-                    continue;
-                }
-            } else if (letter == "C") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "R") {               //CR=0x0D
-                    buffer.append(0x0D);
-                    continue;
-                } else if (hex == "A") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "N") {           //CAN=0x18
-                        buffer.append(0x18);
-                        continue;
-                    }
-                }
-            } else if (letter == "D") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "L") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "E") {           //DLE=0x10
-                        buffer.append(0x10);
-                        continue;
-                    }
-                } else if (hex == "C") {
-                    i++;
-                    hex = str.mid(i, 1);
-
-                    if (hex == "1") {           //DC1=0x11
-                        buffer.append(0x11);
-                        continue;
-                    } else if (hex == "2") {    //DC2=0x12
-                        buffer.append(0x12);
-                        continue;
-                    } else if (hex == "3") {    //DC3=0x13
-                        buffer.append(0x13);
-                        continue;
-                    } else if (hex == "4") {    //DC2=0x14
-                        buffer.append(0x14);
-                        continue;
-                    }
-                }
-            } else if (letter == "F") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "F") {               //FF=0x0C
-                    buffer.append(0x0C);
-                    continue;
-                } else if (hex == "S") {        //FS=0x1C
-                    buffer.append(0x1C);
-                    continue;
-                }
-            } else if (letter == "H") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "T") {               //HT=0x09
-                    buffer.append(0x09);
-                    continue;
-                }
-            } else if (letter == "L") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "F") {               //LF=0x0A
-                    buffer.append(0x0A);
-                    continue;
-                }
-            } else if (letter == "G") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "S") {               //GS=0x1D
-                    buffer.append(0x1D);
-                    continue;
-                }
-            } else if (letter == "R") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "S") {               //RS=0x1E
-                    buffer.append(0x1E);
-                    continue;
-                }
-            } else if (letter == "U") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "S") {               //US=0x1F
-                    buffer.append(0x1F);
-                    continue;
-                }
-            } else if (letter == "V") {
-                i++;
-                hex = str.mid(i, 1);
-
-                if (hex == "T") {               //VT=0x0B
-                    buffer.append(0x0B);
-                    continue;
-                }
-            } else if (letter == "\\") {
-                //如果连着的是多个\\则对应添加\对应的16进制0x5C
-                buffer.append(0x5C);
-                continue;
-            } else {
-                //将对应的\[前面的\\也要加入
-                buffer.append(0x5C);
-                buffer.append(letter.toLatin1());
-                continue;
-            }
-        }
-
-        buffer.append(str.mid(i, 1).toLatin1());
-
-    }
-
-    return buffer;
-}
-
 QString QUIHelper::byteArrayToHexStr(const QByteArray &data)
 {
     QString temp = "";
diff --git a/nettool/api/quiwidget.h b/nettool/api/quiwidget.h
index 589f8d6..3b93958 100644
--- a/nettool/api/quiwidget.h
+++ b/nettool/api/quiwidget.h
@@ -716,15 +716,14 @@ public:
     static quint16 getModbus16(quint8 *data, int len);
     static QByteArray getCRCCode(const QByteArray &data);
 
-    //字节数组转Ascii字符串
+    //字节数组与Ascii字符串互转
+    static void initAsciiStr();
     static QString byteArrayToAsciiStr(const QByteArray &data);
-    //16进制字符串转字节数组
-    static QByteArray hexStrToByteArray(const QString &str);
-    static char convertHexChar(char ch);
+    static QByteArray asciiStrToByteArray(const QString &data);
 
-    //Ascii字符串转字节数组
-    static QByteArray asciiStrToByteArray(const QString &str);
-    //字节数组转16进制字符串
+    //16进制字符串与字节数组互转
+    static char hexStrToChar(char data);
+    static QByteArray hexStrToByteArray(const QString &data);
     static QString byteArrayToHexStr(const QByteArray &data);
 
     //获取保存的文件