//获取现在时间的秒钟分钟时钟数

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

NSDateFormatter * format1=[[NSDateFormatter alloc]init];

[format1 setDateFormat:@"HH"];//@"hh"为小于12的报数

NSDateFormatter * format2=[[NSDateFormatter alloc]init];

[format2 setDateFormat:@"mm"];

NSDateFormatter * format3=[[NSDateFormatter alloc]init];

[format3 setDateFormat:@"ss"];

//获取小时

NSString * str3=[format1 stringFromDate:date];

NSInteger temp3=[str3 integerValue];

NSLog(@"%ld",temp3);

//获取分钟

NSString * str4=[format2 stringFromDate:date];

NSInteger temp4=[str4 integerValue];

NSLog(@"%ld",temp4);

//获取分钟

NSString *str5=[format3 stringFromDate:date];

NSInteger temp5=[str5 integerValue];

NSLog(@"%ld",temp5);

//获取标准的时间日期

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

[formatter setDateFormat:(@"yyyy-MM-dd HH:mm:ss")];//设置时间格式

NSString *now = [formatter stringFromDate:date]