Question

我正在制作一个关于从系外行星收集元素的游戏。如果我能在一个函数中完成所有这一切，我会没有问题，但我将一个结构数组的指针传递给多个函数。所以我不断收到错误，因为我不知道有多少指针放置每个函数的参数和参数。特别是函数中的函数（称为missionMenu（））是一个真正令人头痛的问题。我也可能搞乱了函数earth（）中的指针。任何帮助将不胜感激！

编辑：我需要帮助修复missionMenu（）函数中的scanf，我认为上面提到的误用指针与它有关

#include <stdio.h>
#include <stdlib.h>
#define pause system("pause")
#define cls system("cls")
#define flush fflush(stdin)
#define SIZE 1000


main(){

    int count=0;

    ELEMENT* element[SIZE];
    earth(&count,element);

}//End main 

void earth(int *c,ELEMENT **element){

    int userMenuChoice = 0; 
    int i;
    int number;
    displayMenu(); 

    element[*c] = malloc(sizeof(ELEMENT));

    scanf("%i", &userMenuChoice); 

    switch (userMenuChoice) { 
            case 1: 

                missionMenu(element[*c],*c);

                break; 
            case 2: 
                for(i=0;i<*c;i++)
                    printf("\t%i\t%i\n", element[i]->hydrogen);
                break; 
            case 3: 

                break;
    }while(userMenuChoice != 4); 

}//end end

void missionMenu(ELEMENT *element, int c ){
    int missionChoice;
    cls;

    printf("Which planet would you like to escapade/exploit? \n\n"); 
    printf("1. Gliese 436 b \n");
    printf("2. Oxygen Planet\n"); 
    printf("3. 55 Cancri E\n"); 
    printf("4. Nitrogen \n"); 
    printf("Please input your choice (1-3): \n\n"); 

    missionChoice = 0; 
    scanf("%i", &missionChoice); 
    switch (missionChoice) { 
            case 1: 

                cls;
                printf("\n\n\nWelcome to Planet Gliece 436 b, a planet made of burning ice.\n");
                printf("The extreme gravity of this planet forces the water to stay in solid form,\neven though the temperature is over 570° fahrenheit.\n\n");
                pause;




                printf("\n\n\tHow much Hydrogen would you like to collect?");
                //scanf("%i",&collect);
                scanf("%[^\n]s", element->hydrogen); flush;
                printf("\n\ntHow much Oxygen would you like to collect?");
               // scanf("%i",&collect);
                scanf("%[^\n]s", element->oxygen); flush;
                c=c+1;
                break; 
            case 2: 

                break; 
            case 3: 

                break;
            case 4:

                break;
    }while(missionChoice != 5); 
}//end mission menu



ELEMENT** newElement() {
    ELEMENT** element;
    element = malloc(sizeof(ELEMENT));
    return element;
} //end newTeam

Answer 1

在main中，您尝试使用指向ELEMENT的指针调用earth函数。如果你检查earth(...)的定义，你会看到它接受一个指向ELEMENT指针的指针，这不是你传递给它的那个。

协助将函数指针指向动态分配的结构数组？

1 个答案: