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QTime的使用
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双Qtime的实现原理
一：QTime的使用
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'D:\Qt\QT-Projects\UI项目\时间实时更新.ui'
#
# Created by: PyQt5 UI code generator 5.12.2
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import QTimer,QDateTime
from PyQt5.QtWidgets import QApplication,QDialog
import sys
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(546, 272)
Dialog.setMinimumSize(QtCore.QSize(546, 272))
Dialog.setMaximumSize(QtCore.QSize(546, 272))
Dialog.setStyleSheet("")
self.label = QtWidgets.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(90, 70, 351, 51))
font = QtGui.QFont()
font.setPointSize(13)
self.label.setFont(font)
self.label.setStyleSheet("background-color: rgb(85, 255, 127);")
self.label.setText("")
self.label.setObjectName("label")
self.pushButton_start = QtWidgets.QPushButton(Dialog)
self.pushButton_start.setGeometry(QtCore.QRect(90, 160, 141, 51))
font = QtGui.QFont()
font.setPointSize(12)
self.pushButton_start.setFont(font)
self.pushButton_start.setObjectName("pushButton_start")
self.pushButton_stop = QtWidgets.QPushButton(Dialog)
self.pushButton_stop.setGeometry(QtCore.QRect(270, 160, 171, 51))
font = QtGui.QFont()
font.setPointSize(12)
self.pushButton_stop.setFont(font)
self.pushButton_stop.setObjectName("pushButton_stop")
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "计时器"))
self.pushButton_start.setText(_translate("Dialog", "开始"))
self.pushButton_stop.setText(_translate("Dialog", "停止"))
self.timer = QTimer(Dialog)
self.timer.timeout.connect(self.show_time)
self.pushButton_stop.setEnabled(False)
self.pushButton_start.setEnabled(True)
self.pushButton_start.clicked.connect(self.start_timer)
self.pushButton_stop.clicked.connect(self.stop_timer)
def start_timer(self):
self.timer.start(1000)
self.pushButton_stop.setEnabled(True)
self.pushButton_start.setEnabled(False)
def stop_timer(self):
self.timer.stop()
self.pushButton_start.setEnabled(True)
self.pushButton_stop.setEnabled(False)
def show_time(self):
time = QDateTime.currentDateTime()
time_display = time.toString("yyyy-MM-dd hh:mm:ss dddd")
self.label.setText(" "+time_display)
if __name__ == "__main__":
app = QApplication(sys.argv)
window = QDialog()
ui = Ui_Dialog()
ui.setupUi(window)
qss_style = """
QLabel{
border-radius:15px;
}
QPushButton{
border-radius:15px;
background-color:red;
}
QPushButton:hover{
background-color:blue;
}
"""
window.setStyleSheet(qss_style)
window.show()
sys.exit(app.exec_())二：双Qtime的实现原理
测试用例：
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'D:\Qt\QT-Projects\UI项目\时间实时更新.ui'
#
# Created by: PyQt5 UI code generator 5.12.2
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import QTimer,QDateTime
from PyQt5.QtWidgets import QApplication,QDialog
import sys
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(546, 272)
Dialog.setMinimumSize(QtCore.QSize(546, 272))
Dialog.setMaximumSize(QtCore.QSize(546, 272))
Dialog.setStyleSheet("")
self.label = QtWidgets.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(90, 70, 351, 51))
font = QtGui.QFont()
font.setPointSize(13)
self.label.setFont(font)
self.label.setStyleSheet("background-color: rgb(85, 255, 127);")
self.label.setText("")
self.label.setObjectName("label")
self.pushButton_start = QtWidgets.QPushButton(Dialog)
self.pushButton_start.setGeometry(QtCore.QRect(90, 160, 141, 51))
font = QtGui.QFont()
font.setPointSize(12)
self.pushButton_start.setFont(font)
self.pushButton_start.setObjectName("pushButton_start")
self.pushButton_stop = QtWidgets.QPushButton(Dialog)
self.pushButton_stop.setGeometry(QtCore.QRect(270, 160, 171, 51))
font = QtGui.QFont()
font.setPointSize(12)
self.pushButton_stop.setFont(font)
self.pushButton_stop.setObjectName("pushButton_stop")
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "计时器"))
self.pushButton_start.setText(_translate("Dialog", "开始"))
self.pushButton_stop.setText(_translate("Dialog", "停止"))
self.timer = QTimer(Dialog)
self.timer_2 = QTimer(Dialog)
self.timer.timeout.connect(self.show_timer_1)
self.timer_2.timeout.connect(self.show_time_2)
self.pushButton_stop.setEnabled(False)
self.pushButton_start.setEnabled(True)
self.pushButton_start.clicked.connect(self.start_timer)
self.pushButton_stop.clicked.connect(self.stop_timer)
def start_timer(self):
self.timer.start(500)
print("计时器1打开操作 - 已经执行！")
self.timer_2.start(500)
print("计时器2打开操作 - 已经执行！")
self.pushButton_stop.setEnabled(True)
self.pushButton_start.setEnabled(False)
def stop_timer(self):
self.timer.stop()
#self.timer_2.stop()
print("计时器1关闭操作 - 已经执行！")
self.pushButton_start.setEnabled(True)
self.pushButton_stop.setEnabled(False)
def show_timer_1(self):
print(">>>计时器1的输出！")
def show_time_2(self):
print(">>>计时器2的输出！")
#pass
# time = QDateTime.currentDateTime()
# time_display = time.toString("yyyy-MM-dd hh:mm:ss dddd")
# self.label.setText(" "+time_display)
if __name__ == "__main__":
app = QApplication(sys.argv)
window = QDialog()
ui = Ui_Dialog()
ui.setupUi(window)
qss_style = """
QLabel{
border-radius:15px;
}
QPushButton{
border-radius:15px;
background-color:red;
}
QPushButton:hover{
background-color:blue;
}
"""
window.setStyleSheet(qss_style)
window.show()
sys.exit(app.exec_())测试结果：
