9.map

类似其他语言的字典

package main
import (
    "fmt"
)
func main()  {
    //第一种
    var m map[string]string
    m = map[string]string{}
    m["name"] = "zhangsan"
    m["sex"] = "男"
    fmt.Println(m)
    //第二种 常用
    m1 := map[string]string{}
    m1["name"] = "李四"
    m1["sex"] = "女"
    fmt.Println(m1)
    //第三种
    m2 := make(map[string]string)
    m2["name"] = "王五"
    m2["sex"] = "男"
    fmt.Println(m2)
    //删除m2的name key
    delete(m2,"name")
    fmt.Println(m2)
    //循环map
    for k,v := range m1{
        fmt.Println(k,v)
    }
}