Qt 用户登录相关设置

#include "widget.h"
#include "ui_widget.h"
#include <QMessageBox>

Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
ui->lineEdit_2->setEchoMode(QLineEdit::Password);//密码用*代替
}

Widget::~Widget()
{
delete ui;
}

void Widget::on_pushButton_clicked()
{
if(ui->lineEdit->text()==tr("cmz") && ui->lineEdit_2->text()== tr("123456"))//校验密码
ui->pushButton->setText(QString::fromUtf8("成功"));
else
{
ui->lineEdit->clear();//清空用户名输入框
ui->lineEdit_2->clear();
ui->lineEdit->setFocus();//将光标转到用户名输入框

QMessageBox::warning(this,tr("Warning"),tr("user name or passwd error!") ,QMessageBox::Yes);
}
}