如何使用pyQT5显示网页

小编给大家分享一下如何使用pyQT5显示网页，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

1、PyQTWebEngine安装库

加载网页需要使用PyQTWebEngine库，可以使用import PyQt5.QtWebEngineWidgets测试是否有这个库，如果没有，需要先安装

pip install PyQtWebEngine -i https://pypi.douban.com/simple/

2、设计窗体

在QT Designer里面，没有WebEngine窗体，只能在程序中创建，先将其他的部分放好。
这儿放置了一个LineEdit，用于输入网址，一个按钮

3、生成代码

使用pyUIC生成代码，生成的代码为：

# -*- coding: utf-8 -*-# Form implementation generated from reading ui file 'web.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, QtWidgetsclass Ui_MainWindow(object):    def setupUi(self, MainWindow):        MainWindow.setObjectName("MainWindow")        MainWindow.resize(1200, 700)        self.centralwidget = QtWidgets.QWidget(MainWindow)        self.centralwidget.setObjectName("centralwidget")        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)        self.lineEdit.setGeometry(QtCore.QRect(20, 10, 631, 31))        self.lineEdit.setObjectName("lineEdit")        self.pushButton = QtWidgets.QPushButton(self.centralwidget)        self.pushButton.setGeometry(QtCore.QRect(690, 10, 90, 30))        self.pushButton.setObjectName("pushButton")        MainWindow.setCentralWidget(self.centralwidget)        self.menubar = QtWidgets.QMenuBar(MainWindow)        self.menubar.setGeometry(QtCore.QRect(0, 0, 1200, 23))        self.menubar.setObjectName("menubar")        MainWindow.setMenuBar(self.menubar)        self.statusbar = QtWidgets.QStatusBar(MainWindow)        self.statusbar.setObjectName("statusbar")        MainWindow.setStatusBar(self.statusbar)        self.retranslateUi(MainWindow)        QtCore.QMetaObject.connectSlotsByName(MainWindow)    def retranslateUi(self, MainWindow):        _translate = QtCore.QCoreApplication.translate        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))        self.lineEdit.setText(_translate("MainWindow", "http://www.baidu.com"))        self.pushButton.setText(_translate("MainWindow", "打开"))

4、添加代码

引入库文件

from PyQt5 import QtCore, QtGui, QtWidgets,QtWebEngineWidgets

1、添加WebEngine窗体

## 创建web窗体        self.qwebengine = QtWebEngineWidgets.QWebEngineView(MainWindow)        self.qwebengine.setGeometry(20, 50, 1600, 600)

2、创建按钮功能

## 创建连接        self.pushButton.clicked.connect(self.open_url)

3、编写按钮函数

def open_url(self):        url=self.lineEdit.text()        self.qwebengine.load(QtCore.QUrl(url))

4、添加启动程序

import sysif __name__ == '__main__':    app = QtWidgets.QApplication(sys.argv)    MainWindow = QtWidgets.QMainWindow()  # 创建窗体对象    ui = Ui_MainWindow()  # 创建PyQt设计的窗体对象    ui.setupUi(MainWindow)  # 调用窗体的方法对对象进行初始化设置    MainWindow.show()  # 显示窗体    sys.exit(app.exec_())  # 程序关闭时退出进程

5、完整代码

# -*- coding: utf-8 -*-# Form implementation generated from reading ui file 'web.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,QtWebEngineWidgetsclass Ui_MainWindow(object):    def setupUi(self, MainWindow):        MainWindow.setObjectName("打开网页")        MainWindow.resize(1640, 700)        self.centralwidget = QtWidgets.QWidget(MainWindow)        self.centralwidget.setObjectName("centralwidget")        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)        self.lineEdit.setGeometry(QtCore.QRect(20, 10, 630, 30))        self.lineEdit.setObjectName("lineEdit")        self.pushButton = QtWidgets.QPushButton(self.centralwidget)        self.pushButton.setGeometry(QtCore.QRect(690, 10, 90, 30))        self.pushButton.setObjectName("pushButton")        MainWindow.setCentralWidget(self.centralwidget)        self.menubar = QtWidgets.QMenuBar(MainWindow)        self.menubar.setGeometry(QtCore.QRect(0, 0, 1200, 23))        self.menubar.setObjectName("menubar")        MainWindow.setMenuBar(self.menubar)        self.statusbar = QtWidgets.QStatusBar(MainWindow)        self.statusbar.setObjectName("statusbar")        MainWindow.setStatusBar(self.statusbar)        self.retranslateUi(MainWindow)        QtCore.QMetaObject.connectSlotsByName(MainWindow)        ## 创建web窗体        self.qwebengine = QtWebEngineWidgets.QWebEngineView(MainWindow)        self.qwebengine.setGeometry(20, 50, 1600, 600)        ## 创建连接        self.pushButton.clicked.connect(self.open_url)    def retranslateUi(self, MainWindow):        _translate = QtCore.QCoreApplication.translate        MainWindow.setWindowTitle(_translate("MainWindow", "打开网页"))        self.lineEdit.setText(_translate("MainWindow", "http://www.baidu.com"))        self.pushButton.setText(_translate("MainWindow", "打开"))    def open_url(self):        url=self.lineEdit.text()        self.qwebengine.load(QtCore.QUrl(url))import sysif __name__ == '__main__':    app = QtWidgets.QApplication(sys.argv)    MainWindow = QtWidgets.QMainWindow()  # 创建窗体对象    ui = Ui_MainWindow()  # 创建PyQt设计的窗体对象    ui.setupUi(MainWindow)  # 调用窗体的方法对对象进行初始化设置    MainWindow.show()  # 显示窗体    sys.exit(app.exec_())  # 程序关闭时退出进程

6、运行

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