PyQt5怎么实现输入对话框(pyqt5,开发技术)

输入对话框

输入对话框，用于弹窗获取用户的输入信息，包含输入列表，输入文本，输入数字等方式。

• QInputDialog.getItem(self,"获取选项消息框", "名字列表", items)，返回值Tuple[str, bool]

• QInputDialog.getText(self,"获取文本消息框", "请输入文本信息：")，返回值Tuple[str, bool]

• QInputDialog.getInt(self,"获取整数消息框", "请输入整数：")，返回值Tuple[int, bool]

• QInputDialog.getMultiLineText(parent: QWidget, title: str, label: str, text: str = ..., flags: QtCore.Qt.WindowType = ..., inputMethodHints: QtCore.Qt.InputMethodHint = ...) -> typing.Tuple[str, bool]

• QInputDialog.getDouble(parent: QWidget, title: str, label: str, value: float = ..., min: float = ..., max: float = ..., decimals: int = ..., flags: QtCore.Qt.WindowType = ..., step: float = ...) -> typing.Tuple[float, bool]

示例：

#_*_coding:utf-8_*_importsysfromPyQt6.QtWidgetsimportQApplicationfromPyQt6.QtWidgetsimportQWidgetfromPyQt6.QtWidgetsimportQMainWindowfromPyQt6.QtWidgetsimportQFormLayoutfromPyQt6.QtWidgetsimportQPushButtonfromPyQt6.QtWidgetsimportQLineEditfromPyQt6.QtWidgetsimportQInputDialogfromPyQt6.QtGuiimportQColorfromPyQt6.QtGuiimportQIconfromPyQt6.QtCoreimportQtclassQInputDialogDemoView(QMainWindow):"""输入消息框类"""def__init__(self):"""构造函数"""super().__init__()self.setWindowTitle("MainWindow")self.setWindowIcon(QIcon(r"./res/20(3).ico"))self.resize(200,100)self.center()self.initui()defcenter(self):"""居中显示"""win_rect=self.frameGeometry()#获取窗口矩形screen_center=self.screen().availableGeometry().center()#屏幕中心#移动窗口矩形到屏幕中心win_rect.moveCenter(screen_center)#移动窗口与窗口矩形重合self.move(win_rect.center())definitui(self):"""初始函数"""#创建表单布局作为底层布局self.formlayout=QFormLayout(self)self.formlayout.setAlignment(Qt.AlignmentFlag.AlignCenter)self.main_widget=QWidget()self.main_widget.setLayout(self.formlayout)self.setCentralWidget(self.main_widget)#添加获取选项按钮self.btn_getitem=QPushButton("GetItem")self.btn_getitem.clicked.connect(self.get_item)self.ledit_getitem=QLineEdit()self.formlayout.addRow(self.btn_getitem,self.ledit_getitem)#添加获取文本按钮self.btn_gettext=QPushButton("GetText")self.btn_gettext.clicked.connect(self.get_text)self.ledit_gettext=QLineEdit()self.formlayout.addRow(self.btn_gettext,self.ledit_gettext)#添加获取整数按钮self.btn_getint=QPushButton("GetInt")self.btn_getint.clicked.connect(self.get_int)self.ledit_getint=QLineEdit()self.formlayout.addRow(self.btn_getint,self.ledit_getint)defget_item(self):"""获取选项槽"""items=("小张","小明","小李","小朱")item,result=QInputDialog.getItem(self,"获取选项消息框","名字列表",items)print(f"item:{item},ok:{result},tpye:{type(result)}")ifitemandresult:self.ledit_getitem.setText(item)defget_text(self):"""获取文本槽"""text,result=QInputDialog.getText(self,"获取文本消息框","请输入文本信息：")print(f"item:{text},ok:{result},tpye:{type(result)}")iftextandresult:self.ledit_gettext.setText(text)defget_int(self):"""获取文本槽"""num,result=QInputDialog.getInt(self,"获取整数消息框","请输入整数：")print(f"item:{num},ok:{result},tpye:{type(result)}")ifnumandresult:self.ledit_getint.setText(str(num))if__name__=="__main__":"""主程序运行"""app=QApplication(sys.argv)window=QInputDialogDemoView()window.show()sys.exit(app.exec())

结果：

主界面：

输入选项：

输入文本：

输入整数：