Objective-c语言_练习题3

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//dateString 格式：2015-12-17 08：08：08

传入时间与现在时间差距60秒内，输出@“刚刚”

差距1小时内,输出@“xx分钟前”

差距1-24小时内,输出@“xx小时前”

差距大于一天，输出@“xx天前”

差距大于30天，输出@“xx个月前”

差距大于365天，输出@“完整日期”

main.m

===========================================================

#import <Foundation/Foundation.h>

#import "Tool.h"

int main(int argc,const char * argv[]) {

@autoreleasepool {

char *Cstring = "This is a String!"; //C语言字符串

NSString *astring = [[NSString alloc] initWithCString:Cstring]; //转换到OC字符串

// NSString *dateString;//距离时间

NSString *dateString=@"2015-12-17 8:08:08";

//控制台输入方式

NSMutableArray *array=[NSMutableArray array];

char shuru[1000];

printf("输入时间(yyyy-MM-dd HH:mm:ss):\n");

gets(shuru);

NSString *dateString = [[NSString alloc] initWithCString:shuru];

NSLog(@"%@",[ToolhandleDate:dateString]);

}

return 0;

}

=================================================================

Tool.h

#import <Foundation/Foundation.h>

@interface Tool : NSObject

+(NSString *)handleDate:(NSString *)dateString;

@end

===============================================================================

Tool.m

#import "Tool.h"

@implementation Tool

+(NSString *)handleDate:(NSString *)dateString

{

NSString *string;

NSDateFormatter *dateFormatter=[NSDateFormatternew];

[dateFormatter setTimeZone:[NSTimeZonetimeZoneWithAbbreviation:@"UTC"]];

[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

NSDate *date=[dateFormatter dateFromString:dateString];

NSTimeInterval timeInterval=date.timeIntervalSinceNow;

timeInterval=-(timeInterval-28800);

传入时间与现在时间差距60秒内，输出@“刚刚”

差距1小时内,输出@“xx分钟前”

差距1-24小时内,输出@“xx小时前”

差距大于一天，输出@“xx天前”

差距大于30天，输出@“xx个月前”

差距大于365天，输出@“完整日期”

if (timeInterval<60)

{

string=@"刚刚";

}

if (timeInterval>60 && timeInterval<3600)//大于1分小于1个小时

{

float mm;

mm=(timeInterval/60);

string=[NSString stringWithFormat:@"%.0f分钟以前",mm];

}

if (timeInterval>3600 && timeInterval<86400)

{

float HH;

HH=((timeInterval/60)/60);

string=[NSString stringWithFormat:@"%.0f小时以前",HH];

}

if(timeInterval>86400 && timeInterval<2592000)

{

float day;

day=((timeInterval/60)/60)/24;

string=[NSString stringWithFormat:@"%.0f天前",day];

}

if(timeInterval>2592000 && timeInterval<31104000)

{

float year;

year=(((timeInterval/60)/60)/24)/30;

string=[NSString stringWithFormat:@"%.0f个月前",year];

}

if(timeInterval>31104000)

{

string=[NSString stringWithFormat:@"%@",dateString];

}

//string=[NSString stringWithFormat:@"%f",timeInterval];

return string;

}

@end

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