//
//  DateFunction.m
//  YouHuiProject
//
//  Created by 小花 on 2018/5/8.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "DateFunction.h"

@implementation DateFunction

+ (int)intervalSinceNow: (NSString *)theDate {
    NSDateFormatter *date=[[NSDateFormatter alloc] init];
    [date setDateFormat:@"yyyy-MM-dd"];//设置时间格式//很重要
    NSDate *d=[date dateFromString:theDate];
    
    NSTimeInterval late=[d timeIntervalSince1970]*1;
    NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];
    NSTimeInterval now=[dat timeIntervalSince1970]*1;
    NSString *timeString=@"";
    NSTimeInterval cha=late-now;
    if (cha/86400>1) {
        timeString = [NSString stringWithFormat:@"%f", cha/86400];
        timeString = [timeString substringToIndex:timeString.length-7];
        return [timeString intValue];
    }else if(cha/86400 <= 1){
        return 1;
    }
    return 0;
}

@end