var ua = navigator.userAgent; var ipad = ua.match(/(iPad).*OSs([d_]+)/), isIphone = !ipad && ua.match(/(iPhonesOS)s([d_]+)/), isAndroid = ua.match(/(Android)s+([d.]+)/), isMobile = isIphone || isAndroid; if(isMobile) { location.href = 'http://m.domain.com'; }else{ location.href = 'http://www.domain.com'; } //或者单独判断iphone或android if(isIphone){ //code else if(isAndroid){ //code }else{ //code }