from PyQt5 import QtWidgets from PyQt5.QtWidgets import QLineEdit,QInputDialog class MyWindow(QtWidgets.QWidget): def __init__(self): super(MyWindow,self).__init__() self.myButton = QtWidgets.QPushButton(self) self.myButton.setObjectName("myButton") self.myButton.setText("Test") self.myButton.clicked.connect(self.msg) def msg(self): #后面四个数字的作用依次是 初始值 最小值 最大值 小数点后位数 doubleNum,ok1 = QInputDialog.getDouble(self, "标题","计数:", 37.56, -10000, 10000, 2) #后面四个数字的作用依次是 初始值 最小值 最大值 步幅 intNum,ok2 = QInputDialog.getInt(self, "标题","计数:", 37, -10000, 10000, 2) #第三个参数可选 有一般显示 (QLineEdit.Normal)、密碼显示( QLineEdit. Password)与不回应文字输入( QLineEdit. NoEcho) stringNum,ok3 = QInputDialog.getText(self, "标题","姓名:",QLineEdit.Normal, "王尼玛") #1为默认选中选项目,True/False 列表框是否可编辑。 items = ["Spring", "Summer", "Fall", "Winter"] item, ok4 = QInputDialog.getItem(self, "标题","Season:", items, 1, True) text, ok5 = QInputDialog.getMultiLineText(self, "标题", "Address:", "John Doe\nFreedom Street") if __name__=="__main__": import sys app=QtWidgets.QApplication(sys.argv) myshow=MyWindow() myshow.show() sys.exit(app.exec_())