1. 判断设备系统(是否为移动设备)
function isMobile() {
var b = navigator.userAgent;
var c = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
for (var a = 0; a < c.length; a++) {
if (b.indexOf(c[a]) > 0) {
return true;
}
}
}