問題描述

知道的朋友幫忙貼個,謝謝了！

問題解答

Mozilla/5.0 (Linux; U; Android 2.3.6; zh-cn; GT-S5660 Build/GINGERBREAD) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1 MicroMessenger/4.5.255

function is_weixin(){var ua = navigator.userAgent.toLowerCase();if(ua.match(/MicroMessenger/i)=='micromessenger') { return true; } else { return false;} }回答3：

function isWechat() { const ua = navigator.userAgent.toLowerCase(); return ua.match(/MicroMessenger/i)[0] === 'micromessenger'; }