ios获取当前年月日和星期

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

NSDate *date = [NSDate date];

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

NSDateComponents *comps = [[NSDateComponents alloc] init];

NSInteger unitFlags = NSYearCalendarUnit |

NSMonthCalendarUnit |

NSDayCalendarUnit |

NSWeekdayCalendarUnit |

NSHourCalendarUnit |

NSMinuteCalendarUnit |

NSSecondCalendarUnit;

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

int week = [comps weekday];

int year=[comps year];

int month = [comps month];

int day = [comps day];

m_labDate.text=[NSString stringWithFormat:@"%d年%d月",year,month];

m_labToday.text=[NSString stringWithFormat:@"%d",day];

m_labWeek.text=[NSString stringWithFormat:@"%@",[arrWeek objectAtIndex:week]];

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