# C `strrchr()`函數 > 原文： [https://beginnersbook.com/2017/11/c-strrchr-function/](https://beginnersbook.com/2017/11/c-strrchr-function/) **`strrchr()`函數**在給定字符串中搜索指定字符的最后一次出現。此函數與[函數`strchr()`](https://beginnersbook.com/2017/11/c-strchr-function/)完全相反，后者在字符串中搜索字符的第一次出現。 ## C `strrchr()`函數聲明 ```c char *strrchr(const char *str, int ch) ``` `str` - 搜索字符`ch`的字符串。 `ch` - 需要搜索的字符 ## `strrchr()`的返回值 它返回指向字符串中字符的最后一次出現的指針。這意味著如果我們顯示`strrchr()`的返回值，那么它應該顯示從指定字符的最后一次出現開始的字符串部分。 ## 示例：`strrchr()`函數 ```c #include <stdio.h> #include <string.h> int main () { const char str[] = "This-is-just-a-test-string"; const char ch = '-'; char *p, *p2; p = strrchr(str, ch); printf("String starting from last occurrence of %c is: %s\n", ch, p); p2 = strrchr(str, 'i'); printf("String starting from last occurrence of 'i' is: %s\n", p2); return 0; } ``` 輸出： ```c String starting from last occurrence of - is: -string String starting from last occurrence of 'i' is: ing ``` #### 相關文章： 1. [C - `strncpy()`示例](https://beginnersbook.com/2017/11/c-strncpy-function/) 2. [C - `strcpy()`示例](https://beginnersbook.com/2017/11/c-strcpy-function/) 3. [C - `strncmp()`示例](https://beginnersbook.com/2017/11/c-strncmp-function/) 4. [C - `strchr()`示例](https://beginnersbook.com/2017/11/c-strchr-function/)