NSDate使用

一、将字符串时间转化为NSDate，并打印

1NSString *string=@"2013-08-12 20:13:43";23NSDateFormatter *formatter =[[NSDateFormatter alloc] init];4//格式一定要一致，否则无法转换5formatter.dateFormat =@"yyyy-MM-dd HH:mm:ss";67NSDate *date = [formatter dateFromString:string];8NSLog(@"\n%@", date);

二、格式化NSDate,转换成字符串并打印

1NSDate *date =[NSDate date];2NSString *time;3NSDateFormatter *dateFormatter =[[NSDateFormatter alloc] init];4dateFormatter.dateFormat =@"yyyy-MM-dd HH:mm:ss";5time =[dateFormatter stringFromDate:date];6NSLog(@"\n%@", date);