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                ## rindex ## 查找字符串中最后一個出現的指定字符 ### 相關函數 ### index,memchr,strchr,strrchr ### 表頭文件 ### ``` #include<string.h> ``` ### 定義函數 ### ``` char *rindex(const char *s, int c); ``` ### 函數說明 ### rindex()用來找出參數s字符串中最后一個出現的參數c地址,然后將該字符出現的地址返回。字符串結束字符(NULL)也視為字符串一部分。 ### 返回值 ### 如果找到指定的字符則返回該字符所在的地址,否則返回0。 ### 范例 ### ``` #include <string.h> main() { char *s ="0123456789012345678901234567890"; char *p; p=rindex(s,'5'); printf("%s\n",p); } ``` ### 執行 ### ``` 567890 ```
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