头文件：

#ifndef LOGINWIDGET_H

#define LOGINWIDGET_H

#include <QLineEdit>

#include <QPushButton>

#include <QWidget>

class LoginWidget : public QWidget

{
 

    Q_OBJECT

public:

    LoginWidget(QWidget *parent = 0);

    ~LoginWidget();

public slots:

    //重置表单

    void resetForm();

    //登录检验

    void loginCheck();

    //明文密文转换

    void pwdSwitch();

private:

    QLineEdit *accline;

    QLineEdit *pwdline;

    QPushButton *pwdswitchbtn;

};

#endif // LOG