pragma mark - 获取现在是周几

• (NSString *)getWeek
  {
  NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
  NSDate *now;
  NSDateComponents *comps = [[NSDateComponents alloc] init];
  NSInteger unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSWeekdayCalendarUnit |
  NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;

  now=[NSDate date];
  comps = [calendar components:unitFlags fromDate:[NSDate date]];

  NSArray * arrWeek=[NSArray arrayWithObjects:@"7",@"1",@"2",@"3",@"4",@"5",@"6", nil];

  NSLog(@"星期:%@", [NSString stringWithFormat:@"%@",[arrWeek objectAtIndex:[comps weekday] - 1]]);
  return [arrWeek objectAtIndex:[comps weekday] - 1];
  }