重新改进支持Qt4.6-Qt6.1

3rd_smtpclient/quotedprintable.h

@@ -0,0 +1,19 @@
+#ifndef QUOTEDPRINTABLE_H
+#define QUOTEDPRINTABLE_H
+
+#include <QObject>
+#include <QByteArray>
+
+class QuotedPrintable : public QObject
+{
+	Q_OBJECT
+public:
+
+	static QString &encode(const QByteArray &input);
+	static QByteArray &decode(const QString &input);
+
+private:
+	QuotedPrintable();
+};
+
+#endif // QUOTEDPRINTABLE_H