使結構體具有指針功能

Question

在C語言中，我嘗試使用一種結構來存儲播放器的當前數據，並在結構中進行管理：

#include <stdio.h>
#include <stdlib.h>

typedef struct playerdat{
  char playername[20];
  int maxhp;
}playerdat;

void new_game(struct playerdat *player){

  printf("Enter your character's name: \n");
  scanf("%s", &player->playername);
  player->playername = strcpy("Little", player->playername);
}

int main(){

  struct playerdat player;
  new_game(&player);

  return 0;
}

一切工作正常，直到我嘗試更改該結構的元素。

錯誤消息顯示為： 錯誤：從'char *'類型分配為'char [20]'類型時，類型不兼容

您能給我示范一個如何在這里使用指針的例子嗎？ 謝謝您的幫助！

Answer 1

scanf("%s", &player->playername);//don't need &
player->playername = strcpy("Little", player->playername);//you know,the memeber `playername` is a array,`playername` is the name of the array,so you can't modify the name of a array

Answer 2

不要在scanf上將char與＆一起使用。

    #include<stdio.h>
    int main()
    {
        char name[20];
        int age;
        printf ("Enter your family name: ");
        scanf ("%s",name); //notice here no &
        printf ("Enter your age: ");
        scanf ("%d",&age);  // here comes &
        return 0;
    }