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

typedef struct 
{
   int age;
   char name[ 10 ];
   int weight; 
}Person; 

int main()
{ 
   Person person = { 20, "Jane", 50 }; 
   
   // 存資料進檔案 
   FILE *file = fopen( "test.txt", "wb" ); 
   fwrite( &person, sizeof(Person), 1, file ); 
   fclose( file );
      
   // 資料清空 
   memset( &person, 0, sizeof(Person) ); 
   
   // 讀資料回來 
   file = fopen( "test.txt", "rb" );
   fread( &person, sizeof(Person), 1, file );
   fclose( file );
   
   printf( "%d,%s,%d\n", person.age, person.name, person.weight ); 
   
   system("pause"); 
   return EXIT_SUCCESS;    
}