系统操作电脑关机设置

import sys
import os  # Python执行系统命令方法所用到的包
from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_shut(object):  # 类 继承object类
    flag = True

    def setupUi(self, shut):  # 方法
        # 设置窗体的大小
        shut.setObjectName("shut")
        shut.resize(420, 180)
        shut.setFixedSize(420, 180)

        self.label = QtWidgets.QLabel(shut)
        self.label.setGeometry(QtCore.QRect(40, 50, 41, 51))  # 标签的位置
        self.label.setFont(QtGui.QFont("Roman times", 10, QtGui.QFont.Bold))
        self.label.setObjectName("label")

        self.lineEdit = QtWidgets.QLineEdit(shut)
        self.lineEdit.setGeometry(QtCore.QRect(70, 50, 71, 41))
        self.lineEdit.setFont(QtGui.QFont("Roman times", 10, QtGui.QFont.Bold))
        self.lineEdit.setObjectName("lineEdit")

        self.label_2 = QtWidgets.QLabel(shut)
        self.label_2.setGeometry(QtCore.QRect(150, 60, 31, 31))
        self.label_2.setFont(QtGui.QFont("Roman times", 10, QtGui.QFont.Bold))
        self.label_2.setObjectName("label_2")

        self.lineEdit_2 = QtWidgets.QLineEdit(shut)
        self.lineEdit_2.setGeometry(QtCore.QRect(180, 50, 71, 41))
        self.lineEdit_2.setFont(QtGui.QFont("Roman times", 10, QtGui.QFont.Bold))
        self.lineEdit_2.setObjectName("lineEdit_2")

        self.label_3 = QtWidgets.QLabel(shut)
        self.label_3.setGeometry(QtCore.QRect(260, 60, 31, 31))
        self.label_3.setFont(QtGui.QFont("Roman times", 10, QtGui.QFont.Bold))
        self.label_3.setObjectName("label_3")

        self.pushButton = QtWidgets.QPushButton(shut, clicked=self.sd)  # 为pushButton添加监听事件click。
        self.pushButton.setGeometry(QtCore.QRect(290, 50, 101, 41))
        self.pushButton.setFont(QtGui.QFont("Roman times", 10, QtGui.QFont.Bold))
        self.pushButton.setObjectName("pushButton")

        self.label_4 = QtWidgets.QLabel(shut)
        self.label_4.setGeometry(QtCore.QRect(0, 120, 500, 31))
        self.label_4.setFont(QtGui.QFont("Roman times", 10, QtGui.QFont.Bold))
        self.label_4.setObjectName("label_4")

        self.retranslateUi(shut)
        QtCore.QMetaObject.connectSlotsByName(
            shut)  # connectSlotsByName是一个QMetaObject类里的静态函数，其作用是用来将QObject * o里的子QObject的某些信号按照其objectName连接到o的槽上。

    def retranslateUi(self, shut):
        _translate = QtCore.QCoreApplication.translate
        shut.setWindowTitle(_translate("shut", "Windows定时关机器"))
        self.label.setText(_translate("shut", "在："))
        self.label_2.setText(_translate("shut", "时"))
        self.label_3.setText(_translate("shut", "分"))
        self.label_4.setText(_translate("shut", "    请输入关机时间"))
        self.pushButton.setText(_translate("shut", "设置"))

    def sd(self, shut):  # self.sd为触发该事件后，需要执行的操作。
        h = self.lineEdit.text()
        m = self.lineEdit_2.text()
        if self.flag:
            self.flag = False
            try:  # 捕获所有异常
                os.popen('at' + h + ':' + m + ' shutdown -s')  # python执行cmd命令的方法
                self.label_4.setText('    设置成功! 系统将关机在今天 ' + h + ':' + m)
                self.pushButton.setText('移除')
                self.lineEdit.clear()
                self.lineEdit_2.clear()
            except:
                self.label_4.setText('Something is wrong~')
        else:
            self.flag = True
            try:
                os.popen('at /delete /yes')
                self.label_4.setText('成功，全部移除')
                self.pushButton.setText('Set')
                self.lineEdit.clear()
                self.lineEdit_2.clear()
            except:
                self.label_4.setText('Something is wrong')

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    Form = QtWidgets.QWidget()
    ui = Ui_shut()
    ui.setupUi(Form)
    Form.show()
    sys.exit(app.exec_())

原文地址：https://www.cnblogs.com/shaozheng/p/12127359.html