package main

import "fmt"

type Book struct { //这是自定义数据类型----结构体(struct)
    title  string
    author string
    page   int
}

func printBooks(book *Book) {
    fmt.Printf("书名:%s,作者:%s,页数:%d \n", book.title, book.author, book.page)
}

func creatMap() {
    student := map[string]int{ //这是map数据类型  无序类型
        "张三": 90, "李四": 50, "王五": 66, "二麻子": 77,
    }
    fmt.Println(student)

    sss := make(map[string]string, 10) //capaCity = 10 初始容量
    sss["李宁"] = "大陆"
    fmt.Println(sss)

    ssr := make(map[string][]int) //单Key多Value
    ssr["李宁"] = []int{1, 2, 3, 4, 5}
    fmt.Println(ssr)
}
func main() {
    PythonBook := Book{"Python入门", "伍某", 500}
    bbb := [...]int{1, 2, 3, 4, 5, 9}
    fmt.Println(len(bbb))
    printBooks(&PythonBook)
    creatMap() //执行创建map函数
}