map_t.go

package main

import (
    "fmt"
)

func main() {
    shiyanlou := make(map[string]string) // 与 map[string]string 相同
    shiyanlou["golang"] = "docker"
    shiyanlou["python"] = "flask web framework"
    shiyanlou["linux"] = "sys administrator"
    fmt.Print("Traverse all keys: ")
    for key := range shiyanlou {    // 遍历了映射的所有键
        fmt.Printf("% s ", key)
    }
    fmt.Println()

    delete(shiyanlou, "linux")  // 从映射中删除键"linux"及其值
    shiyanlou["golang"] = "beego web framework" // 更新键“golang"的值

    v, found := shiyanlou["linux"]
    fmt.Printf("Found key \"linux\" Yes or False: %t, value of key \"linux\": \"%s\"", found, v)
    fmt.Println()

    fmt.Println("Traverse all keys/values after changed:")
    for k, v := range shiyanlou {   //遍历了映射的所有键/值对
        fmt.Printf("\"%s\": \"%s\"\n", k, v)
    }
}