PyQt5+Qt designer實戰
阿新 • • 發佈：2019-01-04
PyQt5+Qt designer 製作計算器
配置說明：
Anaconda 4.2.0 (64-bit)
Python 3.5.2
首先，在Qt designer裡面設計介面：
開啟 Qt designer後，設計介面如下所示：
儲存為clat.ui。然後將其轉為py檔案：
之後會生產clat.py檔案。
開啟後，程式碼如下：
# -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'clat.ui' # # Created by: PyQt5 UI code generator 5.6 # # 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(746, 455) self.widget = QtWidgets.QWidget(Form) self.widget.setGeometry(QtCore.QRect(81, 31, 512, 399)) self.widget.setObjectName("widget") self.gridLayout = QtWidgets.QGridLayout(self.widget) self.gridLayout.setContentsMargins(0, 0, 0, 0) self.gridLayout.setObjectName("gridLayout") self.textBrowser = QtWidgets.QTextBrowser(self.widget) self.textBrowser.setObjectName("textBrowser") self.gridLayout.addWidget(self.textBrowser, 0, 0, 2, 4) self.calendarWidget = QtWidgets.QCalendarWidget(self.widget) self.calendarWidget.setObjectName("calendarWidget") self.gridLayout.addWidget(self.calendarWidget, 1, 4, 1, 2) self.lineEdit = QtWidgets.QLineEdit(self.widget) self.lineEdit.setObjectName("lineEdit") self.gridLayout.addWidget(self.lineEdit, 2, 0, 1, 5) self.pushButton_19 = QtWidgets.QPushButton(self.widget) self.pushButton_19.setObjectName("pushButton_19") self.gridLayout.addWidget(self.pushButton_19, 4, 0, 1, 1) self.pushButton_17 = QtWidgets.QPushButton(self.widget) self.pushButton_17.setObjectName("pushButton_17") self.gridLayout.addWidget(self.pushButton_17, 4, 1, 1, 1) self.pushButton_18 = QtWidgets.QPushButton(self.widget) self.pushButton_18.setObjectName("pushButton_18") self.gridLayout.addWidget(self.pushButton_18, 4, 2, 1, 1) self.pushButton_1 = QtWidgets.QPushButton(self.widget) self.pushButton_1.setObjectName("pushButton_1") self.gridLayout.addWidget(self.pushButton_1, 4, 3, 1, 3) self.pushButton_14 = QtWidgets.QPushButton(self.widget) self.pushButton_14.setObjectName("pushButton_14") self.gridLayout.addWidget(self.pushButton_14, 6, 0, 1, 1) self.pushButton_15 = QtWidgets.QPushButton(self.widget) self.pushButton_15.setObjectName("pushButton_15") self.gridLayout.addWidget(self.pushButton_15, 6, 1, 1, 1) self.pushButton_16 = QtWidgets.QPushButton(self.widget) self.pushButton_16.setObjectName("pushButton_16") self.gridLayout.addWidget(self.pushButton_16, 6, 2, 1, 1) self.pushButton_2 = QtWidgets.QPushButton(self.widget) self.pushButton_2.setObjectName("pushButton_2") self.gridLayout.addWidget(self.pushButton_2, 6, 3, 1, 3) self.pushButton_11 = QtWidgets.QPushButton(self.widget) self.pushButton_11.setObjectName("pushButton_11") self.gridLayout.addWidget(self.pushButton_11, 8, 0, 1, 1) self.pushButton_12 = QtWidgets.QPushButton(self.widget) self.pushButton_12.setObjectName("pushButton_12") self.gridLayout.addWidget(self.pushButton_12, 8, 1, 1, 1) self.pushButton_13 = QtWidgets.QPushButton(self.widget) self.pushButton_13.setObjectName("pushButton_13") self.gridLayout.addWidget(self.pushButton_13, 8, 2, 1, 1) self.pushButton_3 = QtWidgets.QPushButton(self.widget) self.pushButton_3.setObjectName("pushButton_3") self.gridLayout.addWidget(self.pushButton_3, 8, 3, 1, 3) self.pushButton_8 = QtWidgets.QPushButton(self.widget) self.pushButton_8.setObjectName("pushButton_8") self.gridLayout.addWidget(self.pushButton_8, 9, 0, 1, 1) self.pushButton_9 = QtWidgets.QPushButton(self.widget) self.pushButton_9.setObjectName("pushButton_9") self.gridLayout.addWidget(self.pushButton_9, 9, 1, 1, 1) self.pushButton_10 = QtWidgets.QPushButton(self.widget) self.pushButton_10.setObjectName("pushButton_10") self.gridLayout.addWidget(self.pushButton_10, 9, 2, 1, 1) self.pushButton_4 = QtWidgets.QPushButton(self.widget) self.pushButton_4.setObjectName("pushButton_4") self.gridLayout.addWidget(self.pushButton_4, 9, 3, 1, 3) self.pushButton_7 = QtWidgets.QPushButton(self.widget) self.pushButton_7.setObjectName("pushButton_7") self.gridLayout.addWidget(self.pushButton_7, 10, 0, 1, 2) self.pushButton_6 = QtWidgets.QPushButton(self.widget) self.pushButton_6.setObjectName("pushButton_6") self.gridLayout.addWidget(self.pushButton_6, 10, 2, 1, 1) self.pushButton_5 = QtWidgets.QPushButton(self.widget) self.pushButton_5.setObjectName("pushButton_5") self.gridLayout.addWidget(self.pushButton_5, 10, 3, 1, 3) self.pushButton = QtWidgets.QPushButton(self.widget) self.pushButton.setObjectName("pushButton") self.gridLayout.addWidget(self.pushButton, 2, 5, 1, 1) self.retranslateUi(Form) QtCore.QMetaObject.connectSlotsByName(Form) def retranslateUi(self, Form): _translate = QtCore.QCoreApplication.translate Form.setWindowTitle(_translate("Form", "Form")) self.pushButton_19.setText(_translate("Form", "退出")) self.pushButton_17.setText(_translate("Form", "返回")) self.pushButton_18.setText(_translate("Form", "清除所有")) self.pushButton_1.setText(_translate("Form", "/")) self.pushButton_14.setText(_translate("Form", "7")) self.pushButton_15.setText(_translate("Form", "8")) self.pushButton_16.setText(_translate("Form", "9")) self.pushButton_2.setText(_translate("Form", "*")) self.pushButton_11.setText(_translate("Form", "4")) self.pushButton_12.setText(_translate("Form", "5")) self.pushButton_13.setText(_translate("Form", "6")) self.pushButton_3.setText(_translate("Form", "+")) self.pushButton_8.setText(_translate("Form", "1")) self.pushButton_9.setText(_translate("Form", "2")) self.pushButton_10.setText(_translate("Form", "3")) self.pushButton_4.setText(_translate("Form", "-")) self.pushButton_7.setText(_translate("Form", "0")) self.pushButton_6.setText(_translate("Form", ".")) self.pushButton_5.setText(_translate("Form", "=")) self.pushButton.setText(_translate("Form", "清除快取"))
然後，新建Run.py檔案，程式碼如下：
import sys from PyQt5.QtWidgets import QApplication, QWidget, QMainWindow from count.clat import Ui_Form class mwindow(QWidget, Ui_Form): def __init__(self): super(mwindow, self).__init__() self.setupUi(self) def ps_bt(self): self.textBrowser.clear() def ps_bt1(self): self.lineEdit.insert('/') def ps_bt2(self): self.lineEdit.insert('*') def ps_bt3(self): self.lineEdit.insert('+') def ps_bt4(self): self.lineEdit.insert('-') def ps_bt5(self): self.lineEdit.insert('=') self.calculate() def ps_bt6(self): self.lineEdit.insert('.') def ps_bt7(self): self.lineEdit.insert('0') def ps_bt8(self): self.lineEdit.insert('1') def ps_bt9(self): self.lineEdit.insert('2') def ps_bt10(self): self.lineEdit.insert('3') def ps_bt11(self): self.lineEdit.insert('4') def ps_bt12(self): self.lineEdit.insert('5') def ps_bt13(self): self.lineEdit.insert('6') def ps_bt14(self): self.lineEdit.insert('7') def ps_bt15(self): self.lineEdit.insert('8') def ps_bt16(self): self.lineEdit.insert('9') def ps_bt17(self): self.lineEdit.backspace() def ps_bt18(self): self.lineEdit.clear() def ps_bt19(self): self.close() def lineEdit_clear(self): self.lineEdit.clear() def calculate(self): # text = self.lineEdit.text() # self.lineEdit.setText('%s= %.2f' % (text, eval(text))) text = self.lineEdit.text() self.textBrowser.append('%s= %.2f' % (text, eval(text))) self.lineEdit_clear() if __name__ == '__main__': app = QApplication(sys.argv) w = mwindow() w.pushButton.clicked.connect(w.ps_bt) w.pushButton_1.clicked.connect(w.ps_bt1) w.pushButton_2.clicked.connect(w.ps_bt2) w.pushButton_3.clicked.connect(w.ps_bt3) w.pushButton_4.clicked.connect(w.ps_bt4) w.pushButton_5.clicked.connect(w.calculate) w.pushButton_6.clicked.connect(w.ps_bt6) w.pushButton_7.clicked.connect(w.ps_bt7) w.pushButton_8.clicked.connect(w.ps_bt8) w.pushButton_9.clicked.connect(w.ps_bt9) w.pushButton_10.clicked.connect(w.ps_bt10) w.pushButton_11.clicked.connect(w.ps_bt11) w.pushButton_12.clicked.connect(w.ps_bt12) w.pushButton_13.clicked.connect(w.ps_bt13) w.pushButton_14.clicked.connect(w.ps_bt14) w.pushButton_15.clicked.connect(w.ps_bt15) w.pushButton_16.clicked.connect(w.ps_bt16) w.pushButton_17.clicked.connect(w.ps_bt17) w.pushButton_18.clicked.connect(w.ps_bt18) w.pushButton_19.clicked.connect(w.ps_bt19) w.show() sys.exit(app.exec_())
執行Run.py，可在裡面進行數值計算：
我曾經跨過山和大海，也穿過人山人海，我曾經擁有著的一切，轉眼都飄散如煙，我曾經失落失望失掉所有方向，直到看見平凡才是唯一的答案。
——韓寒《平凡之路》