Question

到目前为止，我有以下代码，我很确定我可以使用多个语句进行显式初始化，但我想学习如何使用单个语句。

#include <stdio.h>
#include <stdlib.h>
#define LUNCHES 5

int main(void)
{
    struct Food
    {
        char *n;  /* “n” attribute of food */
        int w, c; /* “w” and “c” attributes of food */
    }

    lunch[LUNCHES], 
    lunch[0] = {"apple pie", 4, 100}, 
    lunch[1] = {"salsa", 2, 80};
}

我认为以下内容可行，但这是另一种说法。

 int main(void)
 {
     struct Food
     {
         char *n;  /* “n” attribute of food */
         int w, c; /* “w” and “c” attributes of food */
     }

     lunch[LUNCHES];
     lunch[0] = {"apple pie", 4, 100};
     lunch[1] = {"salsa", 2, 80};

Answer 1

你快到了：

 = { [0] = {"apple pie", 4, 100}, [1] = {"salsa", 2, 80} }

将是您阵列的初始化。

仅当您的编译器支持C99附带的“指定”初始值设定项时。

，否则

 = { {"apple pie", 4, 100}, {"salsa", 2, 80} }

也会这样做。

Answer 2

尝试：

struct { ... } lunch[LUNCHES] = {{"apple pie", 4,100}, {"salsa",2,80}};

Answer 3

你可以用这种方式定义

int main(void)
{
    struct Food
    {
        char *n;                                                            /* “n” attribute of food */
        int w, c;                                                  /* “w” and “c” attributes of food */
    }lunch[LUNCHES] = { {"apple pie", 4, 100}, {"salsa", 2, 80}};
}

Answer 4

或许这样的事情？

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

#define LUNCHES 5

struct Food {
   char *n;   /* “n” attribute of food */
   int w, c;  /* “w” and “c” attributes of food */
} lunch[LUNCHES] = {
    {"apple pie", 4, 100}, 
    {"salsa", 2, 80}
};

int 
main(void)
{
  printf ("lunches[0].n= %s\n", lunches[0].n);
  return 0;
}

如何创建单个struct语句来声明一个数组并进行初始化？

4 个答案: