//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]
