Go 自学：map关联数组

以下代码展示了如何建立一个map。

我们可以使用delete删除map中的元素。

我们还可以使用loop遍历map中的所有元素。

package main

import (
	"fmt"
)

func main() {

	languages := make(map[string]string)

	languages["JS"] = "Javascript"
	languages["RB"] = "Ruby"
	languages["PY"] = "Python"

	fmt.Println("List of all languages: ", languages)
	fmt.Println("JS shorts for: ", languages["JS"])

	delete(languages, "RB")
	fmt.Println("List of all languages: ", languages)

	for key, value := range languages {
		fmt.Printf("For key %v, value is %v\n", key, value)
	}
}

输出为：

List of all languages: map[JS:Javascript PY:Python RB:Ruby]

JS shorts for: Javascript

List of all languages: map[JS:Javascript PY:Python]

For key JS, value is Javascript

For key PY, value is Python