PyQt5 - QInputDialog 控件

这是一个预先配置的具有一个文本字段和两个按钮的对话框，确定和取消。父窗口在用户单击确定按钮或按 Enter 时收集文本框中的输入。

用户输入可以是数字、字符串或列表中的项。还显示提示用户执行操作的标签。

QInputDialog 类有以下从用户处接受输入的静态方法 −

示例

以下示例实现了输入对话框功能。顶级窗口有三个按钮。它们的 clicked() 信号通过连接的槽弹出 InputDialog。

items = ("C", "C++", "Java", "Python")
item, ok = QInputDialog.getItem(
   self, "select input dialog", "list of languages", items, 0, False
)
   if ok and item:
      self.le.setText(item)
		
   def gettext(self):
      text, ok = QInputDialog.getText(self, 'Text Input Dialog', 'Enter your name:')
      if ok:
         self.le1.setText(str(text))
			
   def getint(self):
      num,ok = QInputDialog.getInt(self,"integer input dualog","enter a number")
		
      if ok:
         self.le2.setText(str(num))

完整代码如下 −

import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *

class inputdialogdemo(QWidget):
   def __init__(self, parent = None):
      super(inputdialogdemo, self).__init__(parent)
		
      layout = QFormLayout()
      self.btn = QPushButton("Choose from list")
      self.btn.clicked.connect(self.getItem)
		
      self.le = QLineEdit()
      layout.addRow(self.btn,self.le)
      self.btn1 = QPushButton("get name")
      self.btn1.clicked.connect(self.gettext)
		
      self.le1 = QLineEdit()
      layout.addRow(self.btn1,self.le1)
      self.btn2 = QPushButton("Enter an integer")
      self.btn2.clicked.connect(self.getint)
		
      self.le2 = QLineEdit()
      layout.addRow(self.btn2,self.le2)
      self.setLayout(layout)
      self.setWindowTitle("Input Dialog demo")
		
   def getItem(self):
      items = ("C", "C++", "Java", "Python")
		
      item, ok = QInputDialog.getItem(
         self, "select input dialog", "list of languages", items, 0, False
      )
			
      if ok and item:
         self.le.setText(item)
			
   def gettext(self):
      text, ok = QInputDialog.getText(self, 'Text Input Dialog', 'Enter your name:')
		
      if ok:
         self.le1.setText(str(text))
			
   def getint(self):
      num,ok = QInputDialog.getInt(self,"integer input dualog","enter a number")
		
      if ok:
         self.le2.setText(str(num))
			
def main(): 
   app = QApplication(sys.argv)
   ex = inputdialogdemo()
   ex.show()
   sys.exit(app.exec_())
	
if __name__ == '__main__':
   main()

输出

上面的代码产生以下输出 −