pycharm配置Qt Designer工具的图文教程

pip install PyQt5 -i https://pypi.doubanio.com/simple
pip install PyQt5-tools -i https://pypi.doubanio.com/simple
pip install paramiko -i https://pypi.doubanio.com/simple
pip install pyinstaller -i https://pypi.doubanio.com/simple

# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'demo.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# 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
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(1066, 796)
        self.horizontalLayoutWidget = QtWidgets.QWidget(Form)
        self.horizontalLayoutWidget.setGeometry(QtCore.QRect(10, 10, 1051, 80))
        self.horizontalLayoutWidget.setObjectName("horizontalLayoutWidget")
        self.horizontalLayout = QtWidgets.QHBoxLayout(self.horizontalLayoutWidget)
        self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.openimg = QtWidgets.QPushButton(self.horizontalLayoutWidget)
        self.openimg.setObjectName("openimg")
        self.horizontalLayout.addWidget(self.openimg)
        self.detect = QtWidgets.QPushButton(self.horizontalLayoutWidget)
        self.detect.setObjectName("detect")
        self.horizontalLayout.addWidget(self.detect)
        self.closewindow = QtWidgets.QPushButton(self.horizontalLayoutWidget)
        self.closewindow.setObjectName("closewindow")
        self.horizontalLayout.addWidget(self.closewindow)
        self.horizontalLayoutWidget_2 = QtWidgets.QWidget(Form)
        self.horizontalLayoutWidget_2.setGeometry(QtCore.QRect(10, 90, 1051, 701))
        self.horizontalLayoutWidget_2.setObjectName("horizontalLayoutWidget_2")
        self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.horizontalLayoutWidget_2)
        self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
        self.label = QtWidgets.QLabel(self.horizontalLayoutWidget_2)
        self.label.setObjectName("label")
        self.horizontalLayout_2.addWidget(self.label)
        self.retranslateUi(Form)
        self.openimg.clicked.connect(Form.shouImg)
        self.detect.clicked.connect(Form.edgeDetect)
        self.closewindow.clicked.connect(Form.close)
        QtCore.QMetaObject.connectSlotsByName(Form)
    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.openimg.setText(_translate("Form", "打开图片"))
        self.detect.setText(_translate("Form", "边缘检测"))
        self.closewindow.setText(_translate("Form", "关闭窗口"))
        self.label.setText(_translate("Form", "show Image"))

from demo import Ui_Form
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtWidgets import QApplication, QMainWindow, QCheckBox
from PyQt5.QtWidgets import QFileDialog
from PyQt5.QtCore import *
from PyQt5.QtCore import pyqtSlot
import sys
import os
import cv2
import numpy as np
from PyQt5.QtGui import *
class MainWindow(QMainWindow, Ui_Form):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent=parent)
        self.setupUi(self)
    # 打开图片按钮槽函数
    def shouImg(self):
        filePath = self.getFileDir()
        img = cv2.imread(filePath[0][0])
        img_dis = QImage(img, img.shape[1], img.shape[0], QImage.Format_RGB888)
        # 加载图片，并设定图片大小
        img_dis = QPixmap(img_dis).scaled(int(img.shape[1]), int(img.shape[0]))
        width = img_dis.width()  ##获取图片宽度
        height = img_dis.height()  ##获取图片高度
        if width / self.label.width() >= height / self.label.height():  ##比较图片宽度与label宽度之比和图片高度与label高度之比
            ratio = width / self.label.width()
        else:
            ratio = height / self.label.height()
        new_width = int(width / ratio)  ##定义新图片的宽和高
        new_height = int(height / ratio)
        new_img = img_dis.scaled(new_width, new_height)  ##调整图片尺寸
        # img_dis = QPixmap(img_dis).scaled(int(img.shape[1]), int(img.shape[0]))
        self.label.setPixmap(new_img)
    # 获取文件地址函数
    def getFileDir(self):
        try:
            self.file_path = QFileDialog.getOpenFileNames(self, "select file", "./", "*.*")
        except Exception as e:
            print(e)
        return self.file_path
    def edgeDetect(self):
        # 自己发挥
        pass
if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())