判断是微信浏览器还是支付宝浏览器

finsh(){
				console.log("关闭浏览器");
				var userAgent = navigator.userAgent;
				console.log(userAgent, 'userAgent')
				var ua = window.navigator.userAgent.toLowerCase();
				if (ua.match(/MicroMessenger/i) == 'micromessenger') {
					console.log('微信浏览器');
					WeixinJSBridge.call('closeWindow');
				} else if (/AlipayClient/.test(window.navigator.userAgent)) {
					//判断是否是支付宝浏览器打开
					console.log('支付宝客户端');
					window.AlipayJSBridge.call('closeWebview')
				}else{
					// 非支付宝、微信
					console.log('非支付宝微信浏览器')
					window.opener = null;//禁止某些浏览器的一些弹窗
					window.open('','_self');
					window.close()
				}
			}