Golang点点滴滴之map

package main

import (
    "fmt"
)

type personInfo struct {
    ID      string
    Name    string
    Address string
}

var (
    number map[string]int
    myapp  map[string]personInfo
)

func main() {

    number = make(map[string]int, 3)

    number := map[string]int{
        "aaa": 1,
        "bbb": 2,
        "ccc": 3,
    }

    myapp := make(map[string]personInfo)
    myapp["p1"] = personInfo{"1", "Amiee", "Street 101"}
    myapp["p2"] = personInfo{"2", "Beva", "Street 102"}

    myMap := map[string]personInfo{
        "a": {"1", "Amiee", "Street 101"},
    }

    fmt.Println(myMap["a"])
    fmt.Println(number)

}