<html lang="en">
<head>
<meta charset="utf-8">
<title>webview与小程序通信title>
head>
<body>
<button onclick="send()">发送button>
<button onclick="isminiapp()">判断是否在小程序内button>
<button onclick="onmessage()">开始监听小程序发送的消息button>
<button onclick="getminiappid()">我要调用小程序获取appid的apibutton>
<script src="https://cdn.jsdelivr.net/npm/eruda">script>
<script>
eruda.init();
script>
<script>
if (navigator.useragent.indexof('alipayclient') > -1) {
document.writeln('