Objective-C - NSString 和 NSDate相互转换

由 NSDate 转换为 NSString:

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];NSString *strDate = [dateFormatter stringFromDate:[NSDate date]];NSLog(@"%@", strDate);[dateFormatter release];

由 NSString 转换为 NSDate:

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];NSDate *date = [dateFormatter dateFromString:@"2010-08-04 16:01:03"];NSLog(@"%@", date);[dateFormatter release];