Qt富文本 - 语法高亮

语法高亮

• 右键点击项目名testRichText,添加C++类，类名MySyntaxHighlighter
  ，父类QSyntaxHighlighter
• 编辑MySyntaxHighlighter.h头文件

mysyntaxhighlighter.h

#ifndef MYSYNTAXHIGHLIGHTER_H
#define MYSYNTAXHIGHLIGHTER_H
#include <QSyntaxHighlighter>

class MySyntaxHighlighter : public QSyntaxHighlighter{
   
    Q_OBJECT
public:
    MySyntaxHighlighter(QTextDocument *parent = 0);
protected:
    void highlightBlock(const QString &text);	//重写父类方法
};
#endif // MYSYNTAXHIGHLIGHTER_H

mysyntaxhighlighter.cpp

#include "mysyntaxhighlighter.h"

MySyntaxHighlighter::MySyntaxHighlighter(QTextDocument