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If you were reading a book in your warm bed on a cold winter's day,you might say you were snug as a bug in a rug.
VOA: special.2010.12.26
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By putting it in a function bug if I find a bug and I change my program I can just run the function again.
把我输入的值放到一个函数里,如果以后我在程序中发现了一个,并对程序进行更改的话，我可以直接。
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Oh, no. Oh, wait. Actually, yes. I bought a painting of a bug, a grasshopper
没有，哦，等等。实际上买过。我买过一幅画着虫子、蝗虫之类的东西的画，
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If you were reading a book in your warm bed on a cold winter's day, you might say you were snug as a bug in a rug.
VOA: special.2009.06.28
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bug It's not true now. If there is a bug in the program it's there for only one reason.
如果程序中有一个,那一定是有原因的，是你通过例如犯了。
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If so,you might say he put a bug in your ear.
VOA: special.2009.06.28
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All right, so there's a bug.
好的，这里有一个缺陷。
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It's a statue of a woman with white robes and long hair. Her arms are thrust high into the sky, and she holds aloft a giant black bug.
VOA: standard.2010.08.10
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It's like a bug or something.
这就像只虫子或者类似的东西。
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But soon after,the town built a monument to honor the bug.
VOA: standard.2010.08.10
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I've had graduate students come to me and say I found a bug in my program.
你该感到自豪么？经常有毕业生,来找到我并告诉我。
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bug If you find a bug, it probably means there bug are more of them. So you ought to be bug a little bit careful. The story I've heard told is you're at somebody's house for dinner, and you're sitting at the dining room table, then you hear a .
对不对？你得修复这个,如果你发现了一个,可能就意味着还有更多的,因此你应该小心点，我听说的一个故事，是当你在别人家吃饭的时候，你坐在餐桌上呢，然后听到了邦的一声响。
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I have a bug. Alright. Now what do I do?
好，现在我该怎么办呢？
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And you'll see at the bottom, bug it says the first actual case of a bug being found.
然后程序就正常工作了，因此这就是第一个被发现的。
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We're actually making a legitimate copy with this version of the program so I don't have this bug in anymore.
我们使用这个程序版本,做了一个合法的拷贝,这样我就没有这个bug了。
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Let me show you one more class, though about-- sorry, let me show you two more classes of algorithms. Let's look at the next one g- and there's a bug in your handout, it should be g of n and m, I apologize for that, I changed it partway through and didn't catch it.
请大家看，额,在你们的课堂材料中有个错误,应该是g，很抱歉-,我改了一部分这个错误但是没看到这里的，好，这儿的增长率，有人想猜猜么？
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Now, should you be proud when you find a bug?
好，那么当你发现一个bug的时候？
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So you say well, rather than rushing off and fixing this one bug, let me pull back and ask, bug is this a systematic mistake that I've made throughout the program?
因此我们应该回头想想,这是不是我在整个程序中都，在犯的一个系统性错误，而不是匆匆忙忙的去修复这一个,如果确实是系统性错误的话？
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It solves a slight bug if we don't use it at all, but more on that in the future when you talk about files and creating files.
它解决了一点缺陷，如果我不用它，但是更多的是在以后当你们讨论,文件和创建文件时。
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Just a few small points. First of all, keep in mind that the bug is probably not where you think it is. Because if a bug were there, you'd have already found it.
第一，记住错误可能不是，发生在你认为的地方,因为如果那儿有一个错误,你可能已经找到了它。
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And by just doing that, bug I just spotted, there's a bug here.
我刚刚这么做了，就发现了有一个。
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it turns out, that this will be a bug, and I want you to think about why it's wrong for me to put this check here.
结果表明我们这儿有一个漏洞，我希望你们去想一想为什么,我把这个check放在这儿就出现漏洞了。
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The goal is to move towards a bug free program.
而是去得到一个没有bug的程序。
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Well remember, that I started this with a bug.
请记住，当我知道其中有一个bug的时候。
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bug And maybe by understanding why it worked on a and not on b, you'll get a lot of insight that you won't if you just focus on the bug.
发现很多东西，而你只关注,本身的话就发现不了这么多东西,如果知道你的程序至少还对。
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You find some way of systematically going through the list. Yet, I often see people, when they're debugging, proceeding at what, to me, looks almost like a random fashion of looking for the bug.
是不是目标元素,我们有一种系统化的，遍历数组的方法，然后我经常看到,有些人调试的时候。
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And that does two things: bug one, it helps catch bugs in your code, and secondly it often converts it into a more efficient sequence of instructions before you actually go off and run it. All right?
这有两点好处：,第一是可以帮助你发现程序中的，第二是把你的代码,在运行之前,转换为更有效率的指令的集合，对不对？
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So you try and find a smaller input that bug will produce the problem.
你应该尝试着用规模小一点的输入,去重现这个。
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bug You put it there. i.e. you made a mistake.
一个错误这种方式来制造了这个。
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Initialization. A very common bug is to initialize a variable. Go through a loop, and then forget to reinitialize it when it needs to be reinitialized again.
忘记初始化,忘记初始化变量是一个很常见的错误,运行完一个循环之后,当需要再次初始化时。
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