1 NSString *string = @"2013-08-12 20:13:43";
2
3 NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
4 //格式一定要一致，否则无法转换
5 formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss";
6
7 NSDate *date = [formatter dateFromString: string];
8 NSLog(@"
%@", date);
1 NSDate *date = [NSDate date];
2 NSString *time;
3 NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
4 dateFormatter.dateFormat = @"yyyy-MM-dd HH:mm:ss";
5 time = [dateFormatter stringFromDate:date];
6 NSLog(@"
%@", date);