1 <!DOCTYPE html>
2 <html>
3 <head lang="en">
4 <meta charset="UTF-8">
5 <title></title>
6 </head>
7 <body>
8 <script>
9 function format(date){
10 //定义数组week:[日,一,二,三,四,五,六]
11 var week=["日","一","二","三","四","五","六"];
12 //获得date中的年y
13 var y=date.getFullYear();
14 //获得date中的月M,再+1
15 var M=date.getMonth()+1;
16 //如果M<10,就改为0+M;
17 M<10&&(M="0"+M);
18 //获得日d
19 var d=date.getDay();
20 //如果d<10,就该位0+d
21 d<10&&(d="0"+d);
22 //获得星期day
23 var day=date.getDay();
24 //获得week中的day位置的汉字保存回day中
25 day=week[day];
26 //获得小时h
27 var h=date.getHours()
28 //定义变量am,赋值为:
29 var am=h<12?"上午":"下午";
30 //如果h<12,就赋值为上午,否则赋值为下午
31 //将h-12
32 h-=12;
33 //如果h<10,就改为0+h
34 h<10&&(h="0"+h);
35 //获得分钟m
36 var m=date.getMinutes();
37 //获得分钟m<10,就改为0+m
38 m<10&&(m="0"+m);
39 return y+"年"+M+"月"+d+"日 星期"+day+" "+am+h+":"+m;
40 //2016年09月01日星期四上午11:57
41 }
42 console.log(format(new Date()));
43 </script>
44 </body>
45 </html>