使用goto有什么问题？ [英] What is wrong with using goto?

问题描述

可能的重复项：

代码。

在过去的编程语言中没有while（）if（）等等，程序员使用goto来构成他们程序的逻辑。

这就是为什么CS神创建函数条件和循环的原因。 结构化节目是当时的一场革命。

goto的适合在几个地方，如跳出嵌套循环

Possible Duplicates:
Why is it bad to use goto?
GOTO still considered harmful?

I was ramdomming through xkcd and saw this one (if also read some negative texts about them some years ago):

What is actually wrong with it? Why are goto's even possible in C++ then?

Why should I not use them?

解决方案

Because they lead to spaghetti code.

In the past programming languages didn't have while() if() etc, and programmers used goto to make up the logic of their programs. It lead to an unmaintainable mess.

That's why the CS gods created functions conditionals and loops. Structured programming was a revolution at the time.

goto's are appropriate in a few places, such as for jumping out of nested loops

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