如果每一行都计算条件，如果你写这样的代码:

Dim a as Boolean = True
If a Then
    Console.WriteLine("1")
    a = False
    Console.WriteLine("2")
Else
    Console.WriteLine("3")
End If

那么输出将是:

1
3

我应该一直优化我的代码。这并不是说我在写之前不应该仔细考虑，而是说我应该努力思考如何从每个语句中挤出每一点性能，甚至牺牲可读性。

My co-workers were/are producing supposedly bad code because they sucked/suck. It took me a while to learn that I should first check what really happened. Most of the times, bad code was caused by lack of management, customers who didn't want to check what they really wanted and started changing their minds like there's no tomorrow, or other circunstances out of anyone's control, like economic crysis. Customers demand "for yesterday" features because they are stupid: Not really. It's about communication. If someone tells them it everything can really be done in 1 week, guess what? they'll want it in 1 week. "Never change code that works". This is not a good thing IMO. You obviously don't have to change what's really working. However, if you never change a piece of code because it's supposedly working and it's too complex to change, you may end up finding out that code isn't really doing what it's supposed to do. Eg: I've seen a sales commission calculation software doing wrong calculations for two years because nobody wanted to maintain the software. Nobody at sales knew about it. The formula was so complex they didn't really know how to check the numbers.

c++在本质上比所有其他语言都要好。

这是我在大学前几年从一个朋友那里收到的。我带着它很长一段时间(我现在脸红了)。只有在与它一起工作了2年左右之后，我才能看到它们的裂缝是什么。

没有人，也没有什么事是完美的，总有改进的空间。

640K应该足够任何人(DOS)。多年来，很多人都相信这一点。

当我第一次拥有8MB内存的系统时，我认为这远远超过了我的需求。它可以运行操作系统(Mac)以及我使用的所有应用程序(Word、Email、Firefox等)。

In the early days, most personal computers had a cassette tape interface for loading and storing programs. I did not have a computer at this time but read everything I could get my hands on (mostly magazines) that had anything to do with computers (this was the late 70's - no internet for me). For some reason I was under the impression that programs were executed directly from the cassette tape and that the only reason computers had any RAM was to store variables while the program ran. I figured that when the code had to execute a jump instruction, it would somehow rewind or advance the tape to the correct position and continue from there.