^(?:(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00)))(\/|-|\.)(?:0?2\1(?:29))$)|(?:(?:1[6-9]|[2-9]\d)?\d{2})(\/|-|\.)(?:(?:(?:0?[13578]|1[02])\2(?:31))|(?:(?:0?[1,3-9]|1[0-2])\2(29|30))|(?:(?:0?[1-9])|(?:1[0-2]))\2(?:0?[1-9]|1\d|2[0-8]))$Description: This expression validates dates in the y/m/d format from 1600/1/1 - 9999/12/31. Follows the same validation rules for dates as my other date validator (m/d/y format) located in this library.
Matches: [04/2/29], [2002-4-30], [02.10.31] [ More Details]
Non-Matches: [2003/2/29], [02.4.31], [00/00/00]
Matches: [04/2/29], [2002-4-30], [02.10.31] [ More Details]
Non-Matches: [2003/2/29], [02.4.31], [00/00/00]
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System.out.println(year+"isaleapyear.");
else
System.out.println(year+"isnotaleapyear.");
{
if((year%4==0&&year%100!=0)||(year%400==0))
{
return true;
} return false;
}
功能:日期输入合法性校验
参数:年,月,日
返回值:true or false
以前做的还行比较好用function verifyDate(sYear, sMonth, sDay) {
if(isNaN(sYear) || isNaN(sMonth) || isNaN(sDay)){
return false;
} var calendarPMM = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
var calendarRMM = new Array(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); var iYear = sYear/1;
var iMonth = sMonth/1;
var iDay = sDay/1; if( iYear <= 0 || iMonth <= 0 || iDay <= 0 || iMonth > 12){
return false;
} if( iYear%4 == 0 ){
if( iYear%100 == 0 && iYear%400 != 0 ){
if( iDay > calendarPMM[iMonth-1] ){
return false;
}
}else{
if( iDay > calendarRMM[iMonth-1] ){
return false;
}
}
}else{
if( iDay > calendarPMM[iMonth-1] ){
return false;
}
}
return true;}