Go语言学习七：结构体

package mainimport "fmt"type Books struct { //左类型，右结构体title   stringauthor  stringsubject stringbook_id int}func main() {var Book1 Books /* 声明 Book1 为 Books 类型 */// book1的表述Book1.title = "Go语言"Book1.author = "shawn"Book1.subject = "fight"Book1.book_id = 123/* 打印 Book1 信息 */fmt.Printf("Book 1 title : %s\n", Book1.title)fmt.Printf("Book 1 author : %s\n", Book1.author)fmt.Printf("Book 1 subject : %s\n", Book1.subject)fmt.Printf("Book 1 book_id : %d\n", Book1.book_id)// 调用函数打印 Book1 信息printBook(Book1)// 结构体指针var ptr *Booksptr = &Book1fmt.Println(ptr.author)printBook1(&Book1) //调用结构体函数}// 结构体作为函数参数func printBook(book Books) {fmt.Printf("Book title : %s\n", book.title)fmt.Printf("Book author : %s\n", book.author)fmt.Printf("Book subject : %s\n", book.subject)fmt.Printf("Book book_id : %d\n", book.book_id)}// 指针结构体函数func printBook1(book *Books) {fmt.Printf("Book title : %s\n", book.title)fmt.Printf("Book author : %s\n", book.author)fmt.Printf("Book subject : %s\n", book.subject)fmt.Printf("Book book_id : %d\n", book.book_id)}