Pyqt5学习（学习中）

记录学习过程+代码

1搭建环境

安装pyqt5

在线安装

pip install pyqt5

离线下载+安装

pip download pyqt5 -d save_path


pip install 

安装QtDesigner

下载地址：Qt Designer Download for Windows and Mac

ui转python 

pyuic5 -x mydesign.ui -o mydesign.py

可以将QtDesigner ,pyuic5加入到pycharm，详见Python - PyQt6、QDesigner、pyuic5-tool 安装使用_sipbuild.pyproject.pyprojectoptionexception-优快云博客

2.使用

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file '0one.ui'
#
# Created by: PyQt5 UI code generator 5.15.11
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import QCoreApplication
from PyQt5.QtWidgets import QMainWindow, QApplication


class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(400, 300)
        self.pushButton = QtWidgets.QPushButton(Form)
        self.pushButton.setGeometry(QtCore.QRect(100, 200, 75, 23))
        self.pushButton.setObjectName("pushButton")

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.pushButton.setText(_translate("Form", "PushButton"))

import sys
class MainWindow(QMainWindow):
    def __init__(self):
        super(MainWindow,self).__init__()
        self.ui=Ui_Form()
        self.ui.setupUi(self)
app=QApplication(sys.argv)
window=MainWindow()
window.show()
sys.exit(app.exec())

案例

1简单计算器

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'vref_qt.ui'
#
# Created by: PyQt5 UI code generator 5.15.11
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QMainWindow, QApplication
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(284, 300)
        self.btn_cal_h_l_s = QtWidgets.QPushButton(Form)
        self.btn_cal_h_l_s.setGeometry(QtCore.QRect(100, 260, 75, 23))
        self.btn_cal_h_l_s.setObjectName("btn_cal_h_l_s")
        self.btn_cal_h_l_s.clicked.connect(self.cal_h_l_s)


        self.textBrowser = QtWidgets.QTextBrowser(Form)
        font = QtGui.QFont()
        font.setPointSize(12)
        self.textBrowser.setFont(font)
        self.textBrowser.setGeometry(QtCore.QRect(50, 10, 191, 151))
        self.textBrowser.setObjectName("textBrowser")
        self.widget = QtWidgets.QWidget(Form)
        self.widget.setGeometry(QtCore.QRect(60, 170, 163, 80))
        self.widget.setObjectName("widget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.widget)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
        self.verticalLayout.setObjectName("verticalLayout")
        self.horizontalLayout = QtWidgets.QHBoxLayout()
        self.horizontalLayout.setSizeConstraint(QtWidgets.QLayout.SetDefaultConstraint)
        self.horizontalLayout.setSpacing(0)
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.label = QtWidgets.QLabel(self.widget)
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label.setFont(font)
        self.label.setObjectName("label")
        self.horizontalLayout.addWidget(self.label)
        self.reg_02 = QtWidgets.QLineEdit(self.widget)
        self.reg_02.setObjectName("reg_02")
        self.reg_02.returnPressed.connect(self.reg_02_returnPressed)

        self.horizontalLayout.addWidget(self.reg_02)
        self.verticalLayout.addLayout(self.horizontalLayout)
        self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
        self.horizontalLayout_2.setSpacing(0)
        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
        self.label_2 = QtWidgets.QLabel(self.widget)
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_2.setFont(font)
        self.label_2.setObjectName("label_2")
        self.horizontalLayout_2.addWidget(self.label_2)
        self.reg_03 = QtWidgets.QLineEdit(self.widget)
        self.reg_03.setObjectName("reg_3")
        self.reg_03.returnPressed.connect(self.reg_03_returnPressed)

        self.horizontalLayout_2.addWidget(self.reg_03)
        self.verticalLayout.addLayout(self.horizontalLayout_2)
        self.horizontalLayout_3 = QtWidgets.QHBoxLayout()
        self.horizontalLayout_3.setSpacing(0)
        self.horizontalLayout_3.setObjectName("horizontalLayout_3")
        self.label_3 = QtWidgets.QLabel(self.widget)
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_3.setFont(font)
        self.label_3.setObjectName("label_3")
        self.horizontalLayout_3.addWidget(self.label_3)
        self.reg_04 = QtWidgets.QLineEdit(self.widget)
        self.reg_04.setObjectName("reg_04")
        self.reg_04.returnPressed.connect(self.cal_h_l_s)
        self.horizontalLayout_3.addWidget(self.reg_04)
        self.verticalLayout.addLayout(self.horizontalLayout_3)

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def h_l_s(self,reg_2, reg_3, reg_4):
        # print(reg_2,reg_3,reg_4)
        h = reg_2 >> 3
        l = reg_3 >> 4
        s = reg_4 >> 3
        l_s = l + s
        reg_2 = (reg_2 & 0x07) | (l_s << 3)
        txt=''
        if l_s > 31:
            txt='l + s>31'
            # return
        else:
        # print("afereg[0x02] = ", hex(reg_2), ';', sep='')
        # print("afereg[0x03] = ", hex(reg_3), ';', sep='')
        # print("afereg[0x04] = ", hex(reg_4), ';', sep='')
        # print()
            txt=f'x = {hex(reg_2)};\ny = {hex(reg_3)};\nz = {hex(reg_4)};\n'
        self.textBrowser.setText(txt)
    def cal_h_l_s(self):
        # 获取输入框中的内容
        reg_2_val = self.reg_02.text()
        reg_3_val = self.reg_03.text()
        reg_4_val = self.reg_04.text()
        # print("afereg[0x02] =", reg_2_val)
        # print("afereg[0x02] =", reg_3_val)
        # print("afereg[0x02] =", reg_4_val)
        self.h_l_s(int(reg_2_val, 16), int(reg_3_val, 16), int(reg_4_val, 16))
    def reg_02_returnPressed(self):
        self.reg_03.setFocus()
    def reg_03_returnPressed(self):
        self.reg_04.setFocus()
    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "计算器1"))
        self.btn_cal_h_l_s.setText(_translate("Form", "calculate"))
        self.label.setText(_translate("Form", "x=0x"))
        self.label_2.setText(_translate("Form", "y=0x"))
        self.label_3.setText(_translate("Form", "z=0x"))


import sys
class MainWindow(QMainWindow):
    def __init__(self):
        super(MainWindow,self).__init__()
        self.ui=Ui_Form()
        self.ui.setupUi(self)
app=QApplication(sys.argv)
window=MainWindow()
window.show()
sys.exit(app.exec())