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 mainimport ("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