<!DOCTYPE HTML><html> <head> <title>年月日</title> <script type="text/javascript"> function one(){ //創(chuàng)建年 var year=document.getElementById('year'); var date=new Date(); for(var i=1900;i<=date.getFullYear();i++){ var y=document.createElement("option"); y.innerText=i; year.appendChild(y); } //創(chuàng)建月 var month=document.getElementById("month"); for(var i=1;i<=12;i++){ var m=document.createElement("option"); m.innerText=i; month.appendChild(m); } //創(chuàng)建日 var day=document.getElementById("day"); var run=0; for(var i=1;i<=28+run;i++){ var d=document.createElement("option"); d.innerText=i; day.appendChild(d); } var ye=parseInt(year.value); var mo=parseInt(month.value);//為什么下面這段寫下來整個年月日都顯示不出來了 swich(mo){ case 1:case 3:case 5:case 7:case 8:case 10:case 12: run=3; break; } } </script> </head> <body onLoad="one()"> <table> <tr> <td> <select id="year"> </select> </td> <td> <select id="month"> </select> </td> <td> <select id="day"> </select> </td> </tr> </table> </body></html>
求javascript這段代碼該怎么改
漫之旅
2015-12-09 13:15:47
