JavaScript 判断某年某月有多少天functiongetYearMonthDayNum(year,month){vardayNum[31,28,31,30,31,30,
JavaScript 判断某年某月有多少天
function getYearMonthDayNum(year,month){ var dayNum = [31,28,31,30,31,30,31,31,30,31,30,31]; if(new Date(year,1,29).getDate()==29){ dayNum[1] = 29; } return dayNum[month-1]; }?说明：支持多种浏览器