PyQt5基础学习-QWebEngineView().page().runJavaScript(执行javaScript的函数)

通过点击按钮, 执行html中的javaScript函数

PyQtCallJS.py

"""
PyQt5调用JavaScript代码

PyQt5和JavaScript交互

什么叫交互

PyQt5 <-> JavaScript
"""
import os

from PyQt5.QtWidgets import *
from PyQt5.QtCore import QTimer, QDateTime
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWebEngineWidgets import *
import sys

class PyQtCallJS(QWidget):
    def __init__(self):
        super(PyQtCallJS, self).__init__()
        self.setWindowTitle("PyQt5调用JavaScript")
        self.setGeometry(5, 30, 1355, 730)
        self.layout = QVBoxLayout()
        self.setLayout(self.layout)
        self.browser = QWebEngineView()

        url = os.getcwd() + os.path.sep + "HTML/tt.html"
        self.browser.load(QUrl.fromLocalFile(url))

        self.layout.addWidget(self.browser)

        button = QPushButton("设置全名")

        self.layout.addWidget(button)
        button.clicked.connect(self.fullname)

    def js_callback(self, result):
        print(result)

    def fullname(self):
        self.value = "hello world"
        #调用Html中的JavaScript函数
        self.browser.page().runJavaScript('fullname("' + self.value + '");', self.js_callback)



if __name__ == "__main__":
    app = QApplication(sys.argv)

    main = PyQtCallJS()
    main.show()

    sys.exit(app.exec_())