将变量从js QWebEngineView获取到python

// 创建QWebChannel对象
var channel = new QWebChannel(qt.webChannelTransport, function(channel) {
  // 注册变量为一个对象
  channel.objects.variableObject = variable;
});

// 将QWebChannel对象传递给QWebEngineView
view.page().setWebChannel(channel);

from PyQt5.QtCore import QObject, pyqtSlot
from PyQt5.QtWebChannel import QWebChannel

class VariableObject(QObject):
    @pyqtSlot(result=str)
    def getVariable(self):
        # 在这里处理获取变量的逻辑
        return variable

# 创建QWebChannel对象
channel = QWebChannel()

# 注册Python对象到QWebChannel对象中
variable_object = VariableObject()
channel.registerObject('variableObject', variable_object)

# 将QWebChannel对象传递给QWebEngineView
view.page().setWebChannel(channel)