IT小生

html5很强大 能节省不少js代码，相比js实现起来轻松不少也更简单！E-mail: type="email"：格式为email时会默认验证此字段格式是否为e_mail格式。required="required"验证此字段是必须得不能为空 novalidate="true"是否验证该域  autofocus="autofocus"默认页面加载时光标所在的位置T

if(localStorage.pagecount){ localStorage.pagecount=Number(localStorage.pagecount)+1; }else{ localStorage.pagecount=1 } document.write("亲爱的会员这事你第"+localStorage.pagecount+"访问本站");请关闭浏览器窗口，然后

var backgroundForestImg=new Image();//forest background; var mushroomImg=new Image();// mushroom var ctx; var screenWidth;//画布宽度 var screenHeight; function GameObject(){ this.x=