第八篇 -- 日期时间数据
效果图：
ui_date_time.py
# -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'ui_date_time.ui' # # Created by: PyQt5 UI code generator 5.13.0 # # WARNING! All changes made in this file will be lost! from PyQt5 import QtCore, QtGui, QtWidgets class Ui_Form(object): def setupUi(self, Form): Form.setObjectName("Form") Form.resize(683, 391) self.groupBox = QtWidgets.QGroupBox(Form) self.groupBox.setGeometry(QtCore.QRect(0, 20, 331, 361)) self.groupBox.setObjectName("groupBox") self.btnGetTime = QtWidgets.QPushButton(self.groupBox) self.btnGetTime.setGeometry(QtCore.QRect(70, 30, 121, 31)) font = QtGui.QFont() font.setPointSize(8) self.btnGetTime.setFont(font) self.btnGetTime.setObjectName("btnGetTime") self.label = QtWidgets.QLabel(self.groupBox) self.label.setGeometry(QtCore.QRect(30, 90, 31, 21)) font = QtGui.QFont() font.setPointSize(10) self.label.setFont(font) self.label.setObjectName("label") self.timeEdit = QtWidgets.QTimeEdit(self.groupBox) self.timeEdit.setGeometry(QtCore.QRect(70, 90, 121, 22)) self.timeEdit.setTime(QtCore.QTime(0, 0, 0)) self.timeEdit.setObjectName("timeEdit") self.label_2 = QtWidgets.QLabel(self.groupBox) self.label_2.setGeometry(QtCore.QRect(30, 180, 31, 21)) font = QtGui.QFont() font.setPointSize(10) self.label_2.setFont(font) self.label_2.setObjectName("label_2") self.dateEdit = QtWidgets.QDateEdit(self.groupBox) self.dateEdit.setGeometry(QtCore.QRect(70, 180, 121, 22)) self.dateEdit.setObjectName("dateEdit") self.label_3 = QtWidgets.QLabel(self.groupBox) self.label_3.setGeometry(QtCore.QRect(10, 270, 71, 21)) font = QtGui.QFont() font.setPointSize(10) self.label_3.setFont(font) self.label_3.setObjectName("label_3") self.editTime = QtWidgets.QLineEdit(self.groupBox) self.editTime.setGeometry(QtCore.QRect(210, 90, 111, 20)) self.editTime.setObjectName("editTime") self.btnSetTime = QtWidgets.QPushButton(self.groupBox) self.btnSetTime.setGeometry(QtCore.QRect(210, 130, 111, 23)) self.btnSetTime.setObjectName("btnSetTime") self.editDate = QtWidgets.QLineEdit(self.groupBox) self.editDate.setGeometry(QtCore.QRect(210, 180, 111, 20)) self.editDate.setObjectName("editDate") self.btnSetDate = QtWidgets.QPushButton(self.groupBox) self.btnSetDate.setGeometry(QtCore.QRect(210, 220, 111, 23)) self.btnSetDate.setObjectName("btnSetDate") self.editDateTime = QtWidgets.QLineEdit(self.groupBox) self.editDateTime.setGeometry(QtCore.QRect(210, 270, 111, 20)) self.editDateTime.setObjectName("editDateTime") self.btnSetDateTime = QtWidgets.QPushButton(self.groupBox) self.btnSetDateTime.setGeometry(QtCore.QRect(210, 310, 111, 23)) self.btnSetDateTime.setObjectName("btnSetDateTime") self.dateTimeEdit = QtWidgets.QDateTimeEdit(self.groupBox) self.dateTimeEdit.setGeometry(QtCore.QRect(70, 270, 121, 22)) self.dateTimeEdit.setObjectName("dateTimeEdit") self.groupBox_2 = QtWidgets.QGroupBox(Form) self.groupBox_2.setGeometry(QtCore.QRect(340, 20, 331, 361)) self.groupBox_2.setObjectName("groupBox_2") self.calendarWidget = QtWidgets.QCalendarWidget(self.groupBox_2) self.calendarWidget.setGeometry(QtCore.QRect(10, 80, 312, 261)) self.calendarWidget.setObjectName("calendarWidget") self.label_4 = QtWidgets.QLabel(self.groupBox_2) self.label_4.setGeometry(QtCore.QRect(30, 40, 91, 16)) font = QtGui.QFont() font.setPointSize(12) self.label_4.setFont(font) self.label_4.setObjectName("label_4") self.editCalendar = QtWidgets.QLineEdit(self.groupBox_2) self.editCalendar.setGeometry(QtCore.QRect(140, 40, 171, 20)) self.editCalendar.setObjectName("editCalendar") self.retranslateUi(Form) QtCore.QMetaObject.connectSlotsByName(Form) def retranslateUi(self, Form): _translate = QtCore.QCoreApplication.translate Form.setWindowTitle(_translate("Form", "Form")) self.groupBox.setTitle(_translate("Form", "日期时间")) self.btnGetTime.setText(_translate("Form", "读取当前日期时间")) self.label.setText(_translate("Form", "时 间")) self.timeEdit.setDisplayFormat(_translate("Form", "H:mm:ss")) self.label_2.setText(_translate("Form", "日 期")) self.label_3.setText(_translate("Form", "日期时间")) self.editTime.setInputMask(_translate("Form", "99:99:99;_")) self.btnSetTime.setText(_translate("Form", "设置时间")) self.editDate.setInputMask(_translate("Form", "9999-99-99")) self.btnSetDate.setText(_translate("Form", "设置日期")) self.editDateTime.setInputMask(_translate("Form", "9999-99-99 99:99:99")) self.btnSetDateTime.setText(_translate("Form", "设置时间日期")) self.dateTimeEdit.setDisplayFormat(_translate("Form", "yyyy/M/d H:mm:ss")) self.groupBox_2.setTitle(_translate("Form", "日历选择")) self.label_4.setText(_translate("Form", "选择的日期："))
myWidget_time_date.py
#!/usr/bin/env python # _*_ coding: UTF-8 _*_ """================================================= @Project -> File : Operate-system -> myWidget.py @IDE : PyCharm @Author : zihan @Date : 2020/4/9 15:33 @Desc : =================================================""" import sys from PyQt5.QtWidgets import QApplication, QWidget from PyQt5.QtCore import QDateTime, QDate, QTime from ui_date_time import Ui_Form class QmyWidget(QWidget): def __init__(self, parent=None): super().__init__(parent) # 调用父类构造函数，创建窗体 self.ui = Ui_Form() # 创建UI对象 self.ui.setupUi(self) # 构造UI # # ============由connectSlotByName() 自动关联的槽函数 ====================== def on_btnGetTime_clicked(self): # # 读取当前日期时间按钮 curDateTime = QDateTime.currentDateTime() self.ui.timeEdit.setTime(curDateTime.time()) self.ui.editTime.setText(curDateTime.toString("hh:mm:ss")) self.ui.dateEdit.setDate(curDateTime.date()) self.ui.editDate.setText(curDateTime.toString("yyyy-MM-dd")) self.ui.dateTimeEdit.setDateTime(curDateTime) self.ui.editDateTime.setText(curDateTime.toString("yyyy-MM-dd hh:mm:ss")) def on_calendarWidget_selectionChanged(self): date = self.ui.calendarWidget.selectedDate() self.ui.editCalendar.setText(date.toString("yyyy年M月d日")) def on_btnSetTime_clicked(self): # 设置时间按钮 tmStr = self.ui.editTime.text() tm = QTime.fromString(tmStr, "hh:mm:ss") self.ui.timeEdit.setTime(tm) def on_btnSetDate_clicked(self): # 设置日期按钮 dtStr = self.ui.editDate.text() dt = QDate.fromString(dtStr, "yyyy-MM-dd") self.ui.dateEdit.setDate(dt) def on_btnSetDateTime_clicked(self): dttmStr = self.ui.editDateTime.text() dttm = QDateTime.fromString(dttmStr, "yyyy-MM-dd hh:mm:ss") self.ui.dateTimeEdit.setDateTime(dttm) if __name__ == "__main__": app = QApplication(sys.argv) # 创建app，用QApplication类 form = QmyWidget() form.show() sys.exit(app.exec_())
解析：
类：
QTime：时间数据类型，仅表示时间。displayFormat设置为H:mm:ss。如15:21:13
QDate：日期数据类型，仅表示日期。如2018-5-6
QDateTime：日期时间数据类型，表示日期和时间，如2018-05-23 09:12:43
组件：
QTimeEdit：编辑和显示时间的组件
QDateEdit：编辑和显示日期的组件。若calendarPopup属性设置为True，运行时右侧按钮变成下拉按钮，单击按钮时出现一个日历选择框，用于在日历上选择日期。
QDateTimeEdit：编辑和显示日期时间的组件，也有calendarPopup属性。
QCalendarWidget：一个用日历形式选择日期的组件，在日历上点击日期发生变化时发射信号selectionChanged()，可响应此信号读取选择的日期。
在将字符串转换为日期时间数据时，需要字符串具有指定的格式，为了限定QLineEdit的输入符合某些格式，可以设置其inputMask属性
| 组件 | inputMask属性 | 意义 |
| editTime | 99:99:99;_ | 只能输入0到9的数字，空格用“_”显示 |
| editDate | 9999-99-99 | 只能输入0到9的数字 |
| editDateTime | 9999-99-99 99:99:99 | 只能输入0到9的数字 |
ok.
