利用navigator对象判断设备类型

 1 function getTerminalType() {
 2     //获取navigator对象
 3     var o = navigator.userAgent,
 4         t = "";
 5     if (/\biPhone\b|\biPad\b/.test(o) && !/android/i.test(o)) {
 6         t = "ios";
 7     } else if (/android/i.test(o)) {
 8         t = "android";
 9     } else if (/windows/i.test(o)) {
10         t = "windows";
11     }
12     console.log(t);
13     return t;
14 }

从百度js中提取