1. 定义一个结构体

type Book struct {title stringauth string
}

2. 结构体使用

package mainimport "fmt"//定义一个结构体
type Book struct {title stringauth string
}func main() {var book1 Bookbook1.title = "Golang"book1.auth = "zhang3"fmt.Println("%v\n",book1)
}

3. 结构体传参

package mainimport "fmt"//定义一个结构体
type Book struct {title stringauth string
}func changeBook(book Book) {//传递一个book的副本book.auth = "666"
}func changeBook3(book *Book)  {//指针传递book.auth = "777"}func main() {var book1 Bookbook1.title = "Golang"book1.auth = "zhang3"fmt.Println("%v\n",book1)//副本传递是不会改变结构体的值changeBook(book1)fmt.Println("副本传递",book1)//指针传递changeBook3(&book1)fmt.Println("指针传递",book1)
}