W3School TIY Editor

package main import ("fmt") func main() { var a = make(map[string]string) a["brand"] = "Ford" a["model"] = "Mustang" a["year"] = "1964" fmt.Println(a) a["year"] = "1970" // 更新一个元素 a["color"] = "red" // 添加一个元素 fmt.Println(a) }