map[KeyType]ValueType{key1 : value1, key2 : value2, … , keyN : valueN}
func test1() {
map1 := make(map[string]string, 5)
map2 := make(map[string]string)
map3 := map[string]string{}
map4 := map[string]string{“a”: “1”, “b”: “2”, “c”: “3”}
fmt.Println(map1, map2, map3, map4)
}