char *和char []之间的区别 [英] Difference between char* and char[]

问题描述

我知道这是一个非常基本的问题。我对以下内容为何以及如何有所不同感到困惑。

I know this is a very basic question. I am confused as to why and how are the following different.

char str[] = "Test";
char *str = "Test";

推荐答案

char str[] = "Test";

是个字符的数组，初始化为

char *str = "Test";

是指向文字（常量）字符串 Test的指针。

is a pointer to the literal (const) string "Test".

它们之间的主要区别是，第一个是数组，另一个是指针。数组拥有其内容，该内容恰好是 Test 的副本，而指针仅引用字符串的内容（在这种情况下是不可变的）。

The main difference between them is that the first is an array and the other one is a pointer. The array owns its contents, which happen to be a copy of "Test", while the pointer simply refers to the contents of the string (which in this case is immutable).

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