Qt开发之路56QLineEdit限制整数输入范围

一&＃xff1a;QLineEdit限制整数输入范围

QIntValidator可以限制QLineEdit的输入范围&＃xff1a;

QIntValidator* IntValidator &＃61; new QIntValidator();IntValidator->setRange(-10,10); //设置范围ui->lineEdit->setValidator(IntValidator);ui->lineEdit->setPlaceholderText("请输入-10-10");//提示