1. - (NSString *)intervalFromLastDate: (NSString *) dateString1 toTheDate:(NSString *) dateString2
   
2. {
   
3. NSArray *timeArray1=[dateString1 componentsSeparatedByString:@"."];
   
4. dateString1=[timeArray1 objectAtIndex:0];
   
5. NSArray *timeArray2=[dateString2 componentsSeparatedByString:@"."];
   
6. dateString2=[timeArray2 objectAtIndex:0];
   
7. NSLog(@"%@.....%@",dateString1,dateString2);
   
8. NSDateFormatter *date=[[NSDateFormatter alloc] init];
   
9. [date setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
   

1. NSDate *d1=[date dateFromString:dateString1];
   
2. NSTimeInterval late1=[d1 timeIntervalSince1970]*1;
   
3. NSDate *d2=[date dateFromString:dateString2];
   
4. NSTimeInterval late2=[d2 timeIntervalSince1970]*1;
   
5. NSTimeInterval cha=late2-late1;
   
6. NSString *[email protected]"";
   
7. NSString *[email protected]"";
   
8. NSString *[email protected]"";
   
9. NSString *[email protected]"";
   
10. sen = [NSString stringWithFormat:@"%d", (int)cha%60];
    
11. // min = [min substringToIndex:min.length-7];
    
12. // 秒
    
13. sen=[NSString stringWithFormat:@"%@", sen];
    
14. min = [NSString stringWithFormat:@"%d", (int)cha/60%60];
    
15. // min = [min substringToIndex:min.length-7];
    
16. // 分
    
17. min=[NSString stringWithFormat:@"%@", min];
    
18. // 小時
    
19. house = [NSString stringWithFormat:@"%d", (int)cha/3600];
    
20. // house = [house substringToIndex:house.length-7];
    
21. house=[NSString stringWithFormat:@"%@", house];
    
22. timeString=[NSString stringWithFormat:@"%@:%@:%@",house,min,sen];
    
23. [date release];
    
24. return timeString;
    
25. }

利用手機在上班工作之餘，賺點小錢，只要有手機就能賺錢完全免費，輕鬆月入千元，賺的不多但可靠真實而且是免費的

直接上圖看圖說明一切，想玩的用手機掃描二維碼即可，下面3個手機賺錢的方法完全免費

1、首次使用填邀請碼 24905420 送4元紅包，每天輕鬆賺20+，不會的我教你

2、下面這個是微信賺錢的，用微信掃碼後關注就可以開始賺錢了，限蘋果未越獄手機

1. - (NSString *)intervalSinceNow: (NSString *) theDate
   
2. {
   
3. NSArray *timeArray=[theDate componentsSeparatedByString:@"."];
   
4. theDate=[timeArray objectAtIndex:0];
   
5. NSDateFormatter *date=[[NSDateFormatter alloc] init];
   
6. [date setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
   
7. NSDate *d=[date dateFromString:theDate];
   
8. NSTimeInterval late=[d timeIntervalSince1970]*1;
   
9. NSDate* dat = [NSDate date];
   
10. NSTimeInterval now=[dat timeIntervalSince1970]*1;
    
11. NSString *[email protected]"";
    
12. NSTimeInterval cha=late-now;
    
13. if (cha/3600<1) {
    
14. timeString = [NSString stringWithFormat:@"%f", cha/60];
    
15. timeString = [timeString substringToIndex:timeString.length-7];
    
16. timeString=[NSString stringWithFormat:@"剩餘%@分", timeString];
    
17. }
    
18. if (cha/3600>1&&cha/86400<1) {
    
19. timeString = [NSString stringWithFormat:@"%f", cha/3600];
    
20. timeString = [timeString substringToIndex:timeString.length-7];
    
21. timeString=[NSString stringWithFormat:@"剩餘%@小時", timeString];
    
22. }
    
23. if (cha/86400>1)
    
24. {
    
25. timeString = [NSString stringWithFormat:@"%f", cha/86400];
    
26. timeString = [timeString substringToIndex:timeString.length-7];
    
27. timeString=[NSString stringWithFormat:@"剩餘%@天", timeString];
    
28. }
    
29. [date release];
    
30. return timeString;
    
31. }
32. 微信關注更多手機賺錢分享
33.