| 标题 | js获取周时间段 |
| 内容 | 关键词:js,周调用,js获取周时间段,js获取下一个月周时间段,和每个周的时间段,保存为.html运行试试看. 这个是对js获取一个月有几周(时间段)的补充 <html> <head> <title>显示日期调用来自> </head> <script language="javascript"> <!--for asp .cn function lu_datechange() { var lu_shouyear=document.getElementById("lu_shouyear"); var lu_shoumonth=document.getElementById("lu_shoumonth"); var lu_showweek=document.getElementById("lu_showweek"); var lu_showweek_begin=document.getElementById("lu_showweek_begin"); var lu_showweek_end=document.getElementById("lu_showweek_end"); var end_temp=""; var begin_temp2=""; var weeknum=""; var tempnum=0; if((lu_shouyear.value!="")&&(lu_shoumonth.value!="")) { var temp_btime=new Date(lu_shouyear.value+"/"+lu_shoumonth.value+"/1");//获取选择年月的1号 var tempnum=temp_btime.getDay();//网站制作学习网fora s p .c n获取选择日期的星期几0表示日 if(tempnum==0){tempnum=7} var temp_now=new Date(); if (!lu_checkdate(temp_now,temp_btime)) { var begin_temp=(new Date(temp_btime.setDate(temp_btime.getDate()-(tempnum-1))));//获取了开始日期------就是日期开始的 lu_showweek_begin.value=(begin_temp.getFullYear())+"-"+(begin_temp.getMonth()+1)+"-"+(begin_temp.getDate()); begin_temp2=begin_temp; var tempobj=document.getElementById("setweeknum");// for (i=1;i<7;i++) { begin_temp2=(new Date(begin_temp2.setDate(begin_temp2.getDate()+7))); if(parseInt(begin_temp2.getMonth()+1)!=parseInt(lu_shoumonth.value)) {end_temp=(new Date(begin_temp2.setDate(begin_temp2.getDate()-8)));//w获w取w .最f后o一r个a周s日p.cn break;} else {weeknum++;tempobj.options[weeknum]= new Option(weeknum,weeknum);} } lu_showweek.value=weeknum; lu_showweek_end.value=(end_temp.getFullYear())+"-"+(end_temp.getMonth()+1)+"-"+(end_temp.getDate()); } else { alert("超过当前日期了!"); } } } function lu_checkdate(temp_now,temp_btime) { if(temp_now<temp_btime) {return true;} else {return false;} } function lu_changeweeknum(n) { var lu_showweek_begin=document.getElementById("lu_showweek_begin"); if ((n!="")&&(lu_showweek_begin.value!="")) { //alert(n+"xxx"+(lu_showweek_begin.value.getDate())); var templu_showweek_begin=(lu_showweek_begin.value.replace(/-/g,"/")); templu_showweek_begin=new Date(templu_showweek_begin); begin_temp=(new Date(templu_showweek_begin.setDate(templu_showweek_begin.getDate()+(n-1)*7))); end_temp=(new Date(templu_showweek_begin.setDate(templu_showweek_begin.getDate()+7*n))); lu_showweek_begin.value=(begin_temp.getFullYear())+"-"+(begin_temp.getMonth()+1)+"-"+(begin_temp.getDate()); lu_showweek_end.value=(end_temp.getFullYear())+"-"+(end_temp.getMonth()+1)+"-"+(end_temp.getDate()); } } --> </script> <body> <select id="lu_shouyear" onChange="lu_datechange();"> <option value="" selected="selected">年份</option> <option value="2008">2008</option> <option value="2009">2009</option> <option value="2010">2010</option> <option value="2011">2011</option> <option value="2012">2012</option> </select> <select id="lu_shoumonth" onChange="lu_datechange();"> <option value="" selected="selected">月份</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> </select>本月共有 <input type="text" id="lu_showweek" size="2" readonly="readonly"> <select id="setweeknum" onChange="lu_changeweeknum(this.value);"> <option value="" selected>周</option> </select>个星期 开始时间是:<input type="text" id="lu_showweek_begin" size="10" maxlength="10"/> 结束时间是:<input type="text" id="lu_showweek_end" size="10" maxlength="10" /> </body> </html> |
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