javascript 根据当前周获得当前月 

 1 function getMonthByWeek(year, week){
 2             var oneminute = 60*1000;
 3             var onehour   = 60*oneminute;
 4             var oneday    = 24*onehour;
 5             var oneweek   = 7*oneday;
 6 
 7             var montharray = new Array(2);
 8             
 9             var datearray = new Array();
10             var begindate = new Date();
11 
12             var mybegindate = new Date();
13             var myenddate = new Date();
14 
15             begindate.setFullYear(year, 0, 1);
16             begindate.setHours(0);
17             begindate.setMinutes(0);
18             begindate.setSeconds(0);
19             begindate.setMilliseconds(1);
20 
21             mybegindate.setFullYear(year, 0, 1);
22             mybegindate.setHours(0);
23             mybegindate.setMinutes(0);
24             mybegindate.setSeconds(0);
25             mybegindate.setMilliseconds(1);
26 
27             if(begindate.getDay() == 0){
28                 mybegindate.setTime(mybegindate.getTime() + (week-1)*oneweek);
29             }else{
30                 mybegindate.setTime(mybegindate.getTime() + (week-1)*oneweek + (7 - begindate.getDay())*oneday);
31             }
32 
33             myenddate.setTime(mybegindate.getTime());
34 
35             montharray[0] = mybegindate.getMonth();
36 
37             for(var i = 1; i < 7; i++){
38                 alert(myenddate.toString());
39                 myenddate.setTime(mybegindate.getTime() + i*oneday);
40                 if(myenddate.getMonth() != montharray[0]){
41                     montharray[1] = myenddate.getMonth();
42                 }
43             }
44 
45             return montharray;
46         }

 

posted @ 2012-03-16 23:51  lostyue  阅读(434)  评论(0)  编辑  收藏  举报