// 已知list中元素"amber","jack"
arr := [...]string{"amber","jack"}

// 初始化map
var set map[string]struct{}
set = make(map[string]struct{})
// 上面2部可替換為set := make(map[string]struct{})

// 將list內容傳遞進map,只根據(jù)key判斷，所以不需要關心value的值，用struct{}{}表示
for _, value := range arr{
	set[value] = struct{}{}
}

// 檢查元素是否在map
if _, ok := set["amber"];ok {
	fmt.Println("amber is in the list")
} else {
	fmt.Println("amber is not in the list")

}

import "reflect"

func FolatArray2Interface(array []float32) []interface{} {
	var goalArray []interface{}
	for _, value := range array {
		goalArray = append(goalArray, value)
	}
	return goalArray
}
func IntArray2Interface(array []int) []interface{} {
	var goalArray []interface{}
	for _, value := range array {
		goalArray = append(goalArray, value)
	}
	return goalArray
}

func StringArray2Interface(array []string) []interface{} {
	var goalArray []interface{}
	for _, value := range array {
		goalArray = append(goalArray, value)
	}
	return goalArray
}

func InArray(array []interface{}, element interface{}) bool {
	// 實現(xiàn)查找整形、string類型和bool類型是否在數(shù)組中
	if element == nil || array == nil {
		return false
	}
	for _, value := range array {
		// 首先判斷類型是否一致 
		if reflect.TypeOf(value).Kind() == reflect.TypeOf(element).Kind() {
			// 比較值是否一致
			if value == element {
				return true
			}
		}
	}
	return false
}