string str=DateTime.Now.AddDays(1).Month == DateTime.Now.Month ? "不是月末" : "是月末"
JS应该有相同的做法吧
function GetDateStr(AddDayCount) {var dd = new Date()
dd.setDate(dd.getDate()+AddDayCount)//获取AddDayCount天后的日期----》就靠这句话
var y = dd.getFullYear()
var m = dd.getMonth()+1//获取当前月份的日期
var d = dd.getDate()
return y+"-"+m+"-"+d
}
document.write("前天:"+GetDateStr(-2))
document.write("<br />昨天:"+GetDateStr(-1))
document.write("<br />今天:"+GetDateStr(0))
document.write("<br />明天:"+GetDateStr(1))
document.write("<br />后天:"+GetDateStr(2))
document.write("<br />大后天:"+GetDateStr(3))