code:
<html> <head> <title></title> <script language=”javascript"> //生成数字下拉列表(选中项,起始数字,结束数字) function CreateOption(str1, str2, str3) { var CreateOption = ""; for (var i = str2; i <= str3; i++) { CreateOption += "<option value=" + i; if (str1 == i) { CreateOption += "\" selected>" + i + "</option>"; } else { CreateOption += "\">" + i + "</option>"; } } document.write(CreateOption); } </script> </head> <body> <select > <script type="text/javascript">CreateOption('1','1','20')</script> </select> </body> </html>