<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<input type="text" id="chatNum" name="chatNum" value="48545">
<button class="btn">一键复制并打开微信</button>
</body>
<script type="text/javascript">
var btn = document.querySelector('.btn');
btn.onclick = function() {
var input = document.getElementById("chatNum").select(); //选择要复制的内容
// input.setSelectionRange(0, input.value.length); //选取input里面文字的长度
document.execCommand('Copy'); //复制选中的文字到粘贴板
var chatUrl = "weixin://";
if (/ipad|iphone|mac/i.test(navigator.userAgent)) {
var ifr = document.createElement("iframe");
ifr.src = chatUrl;
ifr.style.display = "none";
document.body.appendChild(ifr);
} else {
window.location.href = chatUrl;
}
}
</script>
</html>
