重新改进支持Qt4.6-Qt6.1

3rd_smtpclient/mimetext.cpp

@@ -0,0 +1,28 @@
+#include "mimetext.h"
+
+MimeText::MimeText(const QString &txt)
+{
+	this->text = txt;
+	this->cType = "text/plain";
+	this->cCharset = "utf-8";
+	this->cEncoding = _8Bit;
+}
+
+MimeText::~MimeText() { }
+
+void MimeText::setText(const QString &text)
+{
+	this->text = text;
+}
+
+const QString &MimeText::getText() const
+{
+	return text;
+}
+
+void MimeText::prepare()
+{
+	this->content.clear();
+    this->content.append(text.toUtf8());
+	MimePart::prepare();
+}