指向结构体指针的例子

#include<stdio.h>
#define LEN 20
struct names
{
  char first[LEN];
  char last[LEN];
};

struct guy
{
  struct names handle;
  char favfood[LEN];
  char job[LEN];
  float income;
};

int main(void)
{
     struct guy fellow[2]=
     {
        {{"Ewen","Villard"},"grilled salmon","personality coach",58112.00},
        {{"Rodney","Swillbelly"},"tripe", "tabbid editor",232400.00}
    };
     
    struct guy *him;

    printf("address #1: %p  #2: %p\n",&fellow[0],&fellow[1]);
    
    him=&fellow[0];

    printf("pointer #1: %p #2: %p\n",him,him+1);

    printf("him->income is $%.2f  (*him)income is $%.2f\n",him->income,(*him).income);

    him++;

    printf("him->favfood is %s  him->handle.last is %s\n",him->favfood,him->handle.last);

    return 0;
}

输出结果

address #1:0x0012fea4 #2:0x0012fef8

pointer #1:0x0012fea4 #2:0x0012fef8

him->income is $58112.00: (*him).income is $58112.00

him->favfood is tripe: him->handle.last is Swillbelly

 

 

结构(fellow)作为函数的参数传递分类 

1：传递结构成员      例如:function(fellow[0].income)
2：传递结构地址      例如:function(&fellow[0])
3：把结构作为参数传递  例如：function(fellow[0])
4：把一个结构赋值给另外一个结构 例如:fellow[0]=fellow[1]
5：结构不能直接赋值给指针(需&取地址)，而数组可以直接赋值给指针   例如：p=&fellow[0] 或 p=数组名