JS判断客户端是手机还是PC的2个代码

//平台、设备和操作系统
var system ={

win : false,

mac : false,

xll : false

};
//检测平台

var p = navigator.platform;

alert(p);

system.win = p.indexOf("Win") == 0;

system.mac = p.indexOf("Mac") == 0;

system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);

//跳转语句

if(system.win||system.mac||system.xll){//转向后台登陆页面

//电脑访问
window.location.href = "";

}else{
//手机访问

window.location.href = "";

}