1 function isOpenMode(){
2 //平台、设备和操作系统
3 var system = {
4 win: false,
5 mac: false,
6 xll: false,
7 ipad: false
8 };
9 //检测平台
10 var p = navigator.platform;
11 system.win = p.indexOf("Win") == 0;
12 system.mac = p.indexOf("Mac") == 0;
13 system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);
14 system.ipad = (navigator.userAgent.match(/iPad/i) != null) ? true : false;
15 //跳转语句，如果是手机访问就自动跳转到wap.baidu.com页面
16 if (system.win || system.mac || system.xll || system.ipad) {
17 var ua = navigator.userAgent.toLowerCase();
18 if(ua.match(/MicroMessenger/i)=="micromessenger") {
19 alert("在PC端微信上打开的");
20 return 2;
21 } else {
22 alert("在PC端非微信上打开的");
23 return 3;
24 }
25 } else {
26 var ua = navigator.userAgent.toLowerCase();
27 if(ua.match(/MicroMessenger/i)=="micromessenger") {
28 alert("在手机端微信上打开的");
29 return 1;
30 } else {
31 alert("在手机上非微信上打开的");
32 return 4;
33 }
34 }
35 }
