第002节：结构体指针

指针指向一个结构体
也可以创建指向结构的指针。

结构体指针

var struct_pointer *Books

以上定义的指针变量可以存储结构体变量的地址。查看结构体变量地址，可以将 & 符号放置于结构体变量前

struct_pointer = &Book1;

使用结构体指针访问结构体成员，使用 "." 操作符

struct_pointer.title;

package mainimport "fmt"type Books struct {   title string   author string   subject string   book_id int}func main() {   var Book1 Books           var Book2 Books              Book1.title = "Go 语言"   Book1.author = "www.runoob.com"   Book1.subject = "Go 语言教程"   Book1.book_id = 6495407      Book2.title = "Python 教程"   Book2.author = "www.runoob.com"   Book2.subject = "Python 语言教程"   Book2.book_id = 6495700      printBook(&Book1)      printBook(&Book2)}func printBook( book *Books ) {   fmt.Printf( "Book title : %sn", book.title);   fmt.Printf( "Book author : %sn", book.author);   fmt.Printf( "Book subject : %sn", book.subject);   fmt.Printf( "Book book_id : %dn", book.book_id);}

结构体实例化也可以是这样的

package mainimport "fmt"type Books struct {}func (s Books) String() string {    return "data"}func main() {    fmt.Printf("%vn", Books{})}