pythonGUI库图形界面开发之PyQt5中QWebEngineView内嵌网页与Python的数据交互传参详细方法实例_python中gui界面设计pyq - CSDN文库

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python GUI库图形界面开发之库图形界面开发之PyQt5中中QWebEngineView内内

嵌网页与嵌网页与Python的数据交互传参详细方法实例的数据交互传参详细方法实例

这几天研究了下PyQt5中QWebEngineView内嵌网页与Python的数据交互，今天把实例方法与代码发布出来供大家参数

数据交互需要load进一个网页，这里我选择load进一个本地html网页：JSTest.html。

同时，QWebEngineView与外面的交互还需要Qt官方提供的一个js文件：qwebchannel.js，这个文件可以在网上下载。

JSTest.html和qwebchannel.js两个文件放在同一个目录下，我这边都是放在Python工程目录下。

qwebchannel.js：

/****************************************************************************

**

** Copyright (C) 2016 The Qt Company Ltd.

** Contact: http://www.qt.io/licensing/

**

** This file is part of the examples of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:BSD$

** You may use this file under the terms of the BSD license as follows:

**

** "Redistribution and use in source and binary forms, with or without

** modification, are permitted provided that the following conditions are

** met:

** * Redistributions of source code must retain the above copyright

** notice, this list of conditions and the following disclaimer.

** * Redistributions in binary form must reproduce the above copyright

** notice, this list of conditions and the following disclaimer in

** the documentation and/or other materials provided with the

** distribution.

** * Neither the name of The Qt Company Ltd nor the names of its

** contributors may be used to endorse or promote products derived

** from this software without specific prior written permission.

**

**

** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."

**

** $QT_END_LICENSE$

**

****************************************************************************/

"use strict";

var QWebChannelMessageTypes = {

signal: 1,

propertyUpdate: 2,

init: 3,

idle: 4,

debug: 5,

invokeMethod: 6,

connectToSignal: 7,

disconnectFromSignal: 8,

setProperty: 9,

response: 10,

};

var QWebChannel = function(transport, initCallback)

{

if (typeof transport !== "object" || typeof transport.send !== "function") {

console.error("The QWebChannel expects a transport object with a send function and onmessage callback property." +

" Given is: transport: " + typeof(transport) + ", transport.send: " + typeof(transport.send));

return;

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评论5

色空空色

2023-07-28

对于想要在Python中使用PyQt5进行界面开发的人来说，这个文件是一个宝藏。

weixin_38662327

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