模拟strcpy与strncpy

void my_strcpy(char *dest, const char *src){assert(dest);assert(src);while ((*dest++ = *src++))//连同‘\0’一起拷贝了{;}}void my_strncpy(char*dest, const char*src, int n){assert(dest);assert(src);char*p = dest;while (n--){*p++ = *src++;}*p = '\0';}int main(){char str[10];char*str1 = "nihao";my_strncpy(str,str1,3);printf("%s",str);}