相关函数: bcopy(), memccpy(), memmove(), strcpy(), strncpy() 表头文件: #include 定义函数: void *memcpy(void *dest, const void *src, size_t n) 函数说明: memcpy()用来拷贝src所指的内存内容前n个字节到dest所指的内存地址上。与strcpy()不同的是,memcpy()会完整的复制n个字节,不会因为遇到字符串结束'\0'而结束 返回值: 返回指向dest的指针 附加说明: 指针src和dest所指的内存区域不可重叠 ------------------------------------------------------- #include #include int main() { char a[30] = "string (a)"; char b[30] = "hi\0zengxiaolong"; int i; strcpy(a, b); //a[30] = "hi\0ing (a)" printf("strcpy():"); for(i = 0; i < 30; i++) printf("%c", a[i]); //hi ing (a) memcpy(a, b, 30); //a[30] = "hi\0zengxiaolong" printf("\nmemcpy():"); for(i = 0; i < 30; i++) printf("%c", a[i]); //hi zengxiaolong printf("\n i = %d\n", i); //30 } |
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