function IsWeixinOrAlipay() {
var ua = window.navigator.userAgent.toLowerCase();
//判断是不是微信
if (ua.match(/MicroMessenger/i) == "micromessenger") {
return "微信";
}
//判断是不是支付宝
if (ua.match(/AlipayClient/i) == "alipayclient") {
return "支付宝";
}
//哪个都不是
return "啥也不是";
}