PC端访问移动站跳转PC站

PC端访问移动站跳转移动站代码如下：

<script type="text/javascript"> 
var system = { 
win: false, 
mac: false,
xll: false
};
var p = navigator.platform;
system.win = p.indexOf("Win") == 0;
system.mac = p.indexOf("Mac") == 0;
system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);
if (system.win || system.mac || system.xll) {        window.location.href = "http://www.cnblogs.com";  } 
else 
{}
</script>