JS中日期和时间的获取

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当前时间：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd"><title>时间格式</title><meta http-equiv=Content-Type content="text/html; charset=utf-8"><html><body onLoad="myFunction()" bgcolor="#EEEEEE" text="#6633CC"><b><h2 ><p>当前时间：</p><p id="demo" ></p><p id="time0"></p><p id="time1"></p><p id="time2"></p><p id="time3"></p><p id="time4"></p><p id="time5"></p><p id="time6"></p><p id="time7"></p><p id="time8"></p><p id="time9"></p></h2></b><script>function myFunction(){var  wantday=new Date();var  year=wantday.getFullYear();        //获得当前年份（4位数字）；var month=wantday.getMonth();           //当前月份（从0开始）；var  date=wantday.getDate();            //当月几号；var  week=wantday.getDay();             //当天星期（数字0-6）；var     h=wantday.getHours();           //当前时（0-24）；var     m=wantday.getMinutes();         //当前分钟；var     s=wantday.getSeconds();         //当前秒数；var    ms=wantday.getMilliseconds();    //当前毫秒数；var    t0=wantday.getYear();            //1900至今的年数（IE8及之前的版本显示与getFullYear相同）；var    t1=wantday.toLocaleString();     //获得当前日期和时间（中国标准时间/GMT+0800）IE/火狐/谷歌显示基本相同，搜狗另类...；var    t2=wantday.toDateString();       //获得当前日期（本地）；var    t3=wantday.toTimeString();       //获得当前时间（中国标准时间/GMT+0800）；var    t4=wantday.toLocaleTimeString(); //获得当前时间（本地-6位数字）；var    t5=wantday.toLocaleDateString(); //获得当前日期；var    t6=wantday.toUTCString();        //获得当前国际统一时间（GMT）；var    t7=wantday.getTime();            //获得1900.1.0至现在的毫秒数；var    t8=wantday.valueOf();            //获得1900.1.0至现在的毫秒数；var    t9=wantday.getTimezoneOffset();  //获得当前时区与UTC（国际统一时间）的差值，以分钟表示（GMT-当前时区）；//为时、分、秒、补零（不足10时）h=checktime(h);m=checktime(m);s=checktime(s);function checktime(i){if(i<10)i="0"+i;return i;}if(ms<100)     //不足100毫秒时，为毫秒百位补零；ms="0"+ms;switch(week)  //将星期由数字转换为对应中文；{case 1 :week="一";break;case 2 :week="二";break;case 3 :week="三";break;case 4 :week="四";break;case 5 :week="五";break;case 6 :week="六";break;case 0 :week="日";break;}var time=year+"年"+(month+1)+"月"+date+"日   "+"星期"+week+"   "+h+":"+m+":"+s+":"+ms;document.getElementById("demo").innerHTML=time;document.getElementById("time0").innerHTML="1900年至今的年数："+t0+"年";document.getElementById("time1").innerHTML=t1;document.getElementById("time2").innerHTML=t2;document.getElementById("time3").innerHTML=t3;document.getElementById("time4").innerHTML=t4;document.getElementById("time5").innerHTML=t5;document.getElementById("time6").innerHTML=t6;document.getElementById("time7").innerHTML=t7;document.getElementById("time8").innerHTML=t8;document.getElementById("time9").innerHTML=t9;setTimeout("myFunction()",1);}</script></body></html>
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