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