/**

獲取年月日，星期幾

**/

+ (NSString *)currentDate;

+ (NSString *)currentDate {

? ? NSString *time;

? ? NSDate *date =[NSDate date];

? ?NSDateFormatter *formatter = [[NSDateFormatter alloc]init];

? ?[formatter setDateFormat:@"yyyy"];

? ?NSInteger currentYear=[[formatter stringFromDate:date] integerValue];

? ?[formatter setDateFormat:@"MM"];

? ?NSInteger currentMonth=[[formatter stringFromDate:date]integerValue];

? ?[formatter setDateFormat:@"dd"];

? ?NSInteger currentDay=[[formatter stringFromDate:date] integerValue];

? ?NSString *day = [NSString stringWithFormat:@"%ld",currentDay];

? ?NSString *month = [NSString stringWithFormat:@"%ld",currentMonth];

? ?NSString *week = [NSString weekdayStringFromDate:date];

? ?if (currentMonth < 10) {

? ? ?month = [NSString stringWithFormat:@"0%@",month];

? ? }

? if (currentDay < 10) {

? ? day = [NSString stringWithFormat:@"0%@",day];

? }

? ?time = [NSString stringWithFormat:@"%ld.%@.%@ %@",currentYear,month,day,week];

? ?return time;

}

+ (NSString*)weekdayStringFromDate:(NSDate*)inputDate {

NSArray *weekdays = [NSArray arrayWithObjects: [NSNull null], @"星期日", @"星期一", @"星期二", @"星期三", @"星期四", @"星期五", @"星期六", nil];

NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];

NSTimeZone *timeZone = [[NSTimeZone alloc] initWithName:@"Asia/Shanghai"];

[calendar setTimeZone: timeZone];

NSCalendarUnit calendarUnit = NSWeekdayCalendarUnit;

NSDateComponents *theComponents = [calendar components:calendarUnit fromDate:inputDate];

return [weekdays objectAtIndex:theComponents.weekday];

}