function device() {
    const u = navigator.userAgent;
    const isAndroid = u.indexOf(‘Android‘) > -1 || u.indexOf(‘Adr‘) > -1; //android终端
    const isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
    if (isAndroid)
      return ‘android‘;
    if (isiOS)
      return ‘ios‘;
 }
if(device() === ‘ios‘){
	$("#half input").each(function(){
		$(this).blur(function(){
			window.scroll(0,0);
		})
	})
}