if(monthValue==1||monthValue==3||monthValue==5||monthValue==7||monthValue==8||monthValue==10||monthValue==12) {
dayvalue = 31
}else if(monthValue==4||monthValue==6||monthValue==11||monthValue==9) {
dayvalue = 30
}else if(monthValue==2){
if(yearValue%4==0 && (yearValue%4 !=0 || yearValue%400==0)){ //闰年
dayvalue = 29
}else{
dayvalue = 28
}
}
按月匹配天数
![](https://img2024.cnblogs.com/blog/35695/202403/35695-20240328092537879-1189167464.jpg)