1 - (NSInteger)getWeekDataWithYear:(NSString *)year month:(NSString *)month day:(NSString *)day{
2
3 // 创建并设置NSDateComponents，它可以根据制定的时间生成对应的Date,同时需要根据相应的Calender
4 NSDateComponents *comps = [[NSDateComponents alloc] init];
5 [comps setDay:[day integerValue]];
6 [comps setMonth:[month integerValue]];
7 [comps setYear:[year integerValue]];
8 // 创建Calender，格林威治时间，周日weekday是1以此类推
9 NSCalendar *gregorian1 = [[NSCalendar alloc]
10 initWithCalendarIdentifier:NSGregorianCalendar];
11 NSDate *date = [gregorian1 dateFromComponents:comps];
12 NSDateComponents *weekdayComponents =
13 [gregorian1 components:NSWeekdayCalendarUnit fromDate:date];
14
15 NSInteger weekday = [weekdayComponents weekday];
16
17 return weekday;
18
19 }
