返回固定的日期格式，返回的格式为 年，日，月，格式可以自己更改
def coverdate(self,year,month,day)： year = int(year) month = int(month) day = int(day) if year % 4 == 0: #判断是否是闰年 if day == 29 and month == 2: #2月特殊处理 wantday =str(year) + "1" + "3" elif day == 31 and month == 12: #12月特殊处理 wantday = str(year+1) + “1” +“1” elif day == 31: #31天的月份 for i in [1,3,5,7,8,10]: if i == month: wantday = str(year)+"1" +str(month+1) elif day == 30: #30天的月份 for i in [4,6,9,11]: #31天的月份也包含30天 if i == month: wantday = str(yar)+"1" + str(month+1) else: wantday = str(year)+ str(day+1) + str(month) else: #普通天处理 wantday = str(year) + str(day+1) + str(month) else: if day == 28 and month == 2: wantday = str(year)+"1" +"3" elif day == 31 and mont == 12: wantday = str(year+1) + “1” +“1” elif day == 31: for i in [1,3,5,7,8,10]: if i == month: wantday = str(year)+"1" +str(month+1) elif day == 30: for i in [4,6,9,11]: if i == month: wantday = str(yar)+"1" + str(month+1) else: wantday = str(year)+ str(day+1) + str(month) else: wantday = str(year) + str(day+1) + str(month)