为什么不教导学生使用调试器？ [英] Why aren't students taught to use a debugger?

问题描述

SO上有很多家庭作业问题。

我想90％+可以通过逐步解决代码来解决在调试器中，并观察程序/变量状态。

我从没被教过要使用调试器。我只是打印并阅读了GDB手册，并逐步介绍了它们的示例。第一次使用Visual Studio时，我想起了，哇！这可以简化多少，单击以设置断点，将鼠标悬停在该值的变量上，按一个键以进行步进，立即窗口，debug.print等...

无论如何，学生是否被教导使用调试器？如果没有，为什么不呢？ （也许更好的问题是，为什么他们不能自己学习使用调试器……也许他们需要被告知有这样的工具可以帮助他们...）

学会使用调试器需要多长时间？

解决方案

我认为问题不在教学中。使用现代的图形调试器并不是火箭科学（至少对于在一台计算机上运行的大多数用户模式程序而言不是）。问题在于某些人的态度。为了有效地使用调试器，您应该：

• 承认这是您的错 和 select 没有损坏。


• 有毅力可以花几口钱晚上调试，不会忘记上一点。


• 没有具体的算法可遵循。您应该根据自己的见识进行有根据的猜测，并根据自己的见识有效地进行推理。在大学里，我看到许多朋友在相对​​较短的时间后放弃，给我带来了一些代码，并告诉我计算机做错了什么。我通常会告诉他们，我比他们更信任自己的计算机（这会伤害某些感觉，但事实就是这样）。
  
  

  There's a lot of homework questions here on SO.

  I would guess that 90%+ can be solved by stepping through the code in a debugger, and observing program/variable state.

  I was never taught to use a debugger. I simply printed and read the GDB manual and stepped through their examples. When I used Visual Studio for the first time, I remembered thinking, Wow! how much simpler can this be, click to set a breakpoint, mouse over a variable for the value, press a key to step, the immediate window, debug.print, etc...

  At any rate, are students "taught" to use a debugger? If not, why not? (Perhaps a better question is, why can't they learn to use a debugger themselves... maybe they need to be told that there is such a tool that can help them...)

  How long does it take to learn to use a debugger?

  解决方案

  I don't think the problem is teaching. Using a modern graphical debugger is not rocket science (at least not for most user-mode programs running on a single computer). The problem is with the attitudes of some people. In order to use a debugger effectively, you should:

  • Admit it's your fault and select isn't broken.
  • Have the perseverance to spend a couple nights debugging, without forgetting the previous point.
  • There's no specific algorithm to follow. You should guess educatedly and reason effectively from what you see.

  Not many non-programmers have these attitudes. At college, I have seen many friends who give up after a relatively short period of time and bring me some code and tell me the computer is doing something wrong. I usually tell them I trust their computer more than them (and this hurts some feelings, but that's the way it is).

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