zq4132的专栏

#ifndef IPPARTLINEEDIT_H#define IPPARTLINEEDIT_H#include <QLineEdit>class QWidget;class QFocusEvent;class QKeyEvent;class IpPartLineEdit : public QLineEdit{ Q_OBJECTpublic: IpPartLineEdit(QWidget *parent = 0); ~IpPartLineEdit(.

#include #include int main(int argc, char *argv[]){ QApplication a(argc, argv); QLabel *label = new QLabel;//新建标签 label->setText("HELLO");//设置标签内容 label->show();//显示标签

//FindDialog 头文件#ifndef FINDDIALOG_H#define FINDDIALOG_H#include class QCheckBox;class QLabel;class QLineEdit;class QPushButton;class FindDialog : public QDialog{ Q_OBJECTpu