js判断是否pc端

 function IsPC() {        var userAgentInfo = navigator.userAgent;        var Agents = ['Android', 'iPhone',            'SymbianOS', 'Windows Phone',            'iPad', 'iPod'        ];        var flag = true;        for (var i = 0; i < Agents.length; i++) {            if (userAgentInfo.indexOf(Agents[i]) != -1) {                flag = false;                break;            }        }        return flag;    }