是什么限定炭之间差的[5]和char（*一）[5]？ [英] what is difference between defining char a[5] and char (*a)[5]?

问题描述

我只是想确认之间的差异*一[5]（*一）[5] C语言编写。

I just want to make sure the difference between *a[5] and (*a)[5] in C language.

我知道一个* [5]是指阵列可以有五个元素，每个元素的指针。
因此，

I know that the *a[5] means the array a can have five elements and each element is pointer. so,

char *p = "ptr1";
char *p2 = "ptr2";
char *a[5] = { p , p2 };

这有一定道理。

但是，当我改变了 *一个[5] 到（*一）[5] 它不的工作。

But when I changed *a[5] to (*a)[5] it doesn't work.

char (*a)[5] = { p , p2};

这是什么（*一）[5] 意味着什么？

在此外，

有间 *一个[5] 和 A [5] [] 和<$有什么区别C $ C>（*一）[5] 和 A [] [5] ？

推荐答案

一个很不错的网站存在的德codeS这样的原型：的http：// cdecl.org/

A great web site exist that decodes such prototypes: http://cdecl.org/

char *a[5]   --> declare a as array 5 of pointer to char
char a[5][]  --> declare a as array 5 of array of char
char (*a)[5] --> declare a as pointer to array 5 of char
char a[][5]  --> declare a as array of array 5 of char

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