iOS日期加减

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- (NSDate *)jsDateFromBeginDate:(NSDate *)beginDate todays:(int)days

{

    NSDate *dateTemp = [[NSDate alloc]init];

    NSTimeInterval interval = 24*60*60*days;

    dateTemp = [dateTemp initWithTimeInterval:interval sinceDate:beginDate];

     

    return dateTemp;

}

　　

NSDateFormatter * dateFormatter = [[[NSDateFormatter alloc]init]autorelease];
 

   NSDate*nowDate = [NSDate date];
   NSTimeInterval  interval =24*60*60*1; //1:天数
    NSDate*date1 = [nowDate initWithTimeIntervalSinceNow:+interval];
   [dateFormattersetDateFormat:@"yyyy-MM-dd"];
   pLabDate.text  = [NSStringstringWithFormat:@"%@",[dateFormatter stringFromDate:date1]];