js中两种异步方式：async+await以及then

news2025/10/31 17:01:02

第一种方式
在这里插入图片描述
第二种方式

完整代码
前端代码

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>pywebview example</title>
</head>

<body>
    <h1>hello pywebview！</h1>
    <p>this is a simple desktop application using pywebview</p>
    <button onclick="GetMessageFromBackground()">Get Message</button>
    <p id="message"></p>

    <script>
    	/*
    	async function GetMessageFromBackground() {
            const message = await window.pywebview.api.getMessage();
            document.getElementById("message").innerText = message
        }
    	*/
        function GetMessageFromBackground() {
            window.pywebview.api.getMessage().then(response => {
                document.getElementById("message").innerText = response
            });
        }
    </script>
</body>

</html>

后端代码

import webview
import os
import json

class API:
    def getMessage(self):
        
        return 'hello from python background'
def main():
    api=API()
    webview.create_window('pywebview example','index.html',js_api=api)
    webview.start()
if __name__=='__main__':
    main()