结构作为函数参数
您可以把结构作为函数参数，传参方式与其他类型的变量或指针类似。您可以使用上面实例中的方式来访问结构变量：
实例

include

include

struct Books
{
char title[50];
char author[50];
char subject[100];
int book_id;
};

/ 函数声明 /
void printBook( struct Books book );
int main( )
{
struct Books Book1; / 声明 Book1，类型为 Books /
struct Books Book2; / 声明 Book2，类型为 Books /

/ Book1 详述 /
strcpy( Book1.title, "C Programming");
strcpy( Book1.author, "Nuha Ali");
strcpy( Book1.subject, "C Programming Tutorial");
Book1.book_id = 6495407;

/ Book2 详述 /
strcpy( Book2.title, "Telecom Billing");
strcpy( Book2.author, "Zara Ali");
strcpy( Book2.subject, "Telecom Billing Tutorial");
Book2.book_id = 6495700;

/ 输出 Book1 信息 /
printBook( Book1 );

/ 输出 Book2 信息 /
printBook( Book2 );

return 0;
}
void printBook( struct Books book )
{
printf( "Book title : %s\n", book.title);
printf( "Book author : %s\n", book.author);
printf( "Book subject : %s\n", book.subject);
printf( "Book book_id : %d\n", book.book_id);
}

当上面的代码被编译和执行时，它会产生下列结果：

Book title : C Programming
Book author : Nuha Ali
Book subject : C Programming Tutorial
Book book_id : 6495407
Book title : Telecom Billing
Book author : Zara Ali
Book subject : Telecom Billing Tutorial
Book book_id : 6495700