go - 删除多维数组中的值

我在函数DeleteCharactersID中出错，它删除了整个多维数组，但是我需要使用我给它的id删除单个元素或值。

这是我的domain.go

type CharactersBB []struct {
    CharID                   int        `json:"char_id"`
    Name                     string        `json:"name"`
    Birthday                 string        `json:"birthday"`
    Occupation               []string      `json:"occupation"`
    Img                      string        `json:"img"`
    Status                   string        `json:"status"`
    Nickname                 string        `json:"nickname"`
    Appearance               []int         `json:"appearance"`
    Portrayed                string        `json:"portrayed"`
    Category                 string        `json:"category"`
    BetterCallSaulAppearance []interface{} `json:"better_call_saul_appearance"`
}

这是我的services.go

var characters []domain.CharactersBB

func DeleteCharactersID(i string) ([]domain.CharactersBB, error) {
    id, err := validateID(i)
    if err != nil {
        return []domain.CharactersBB{}, ErrorInvalidID
    }

    c, err := searchCharacter(id)
    if err != nil {
        return []domain.CharactersBB{}, err
    }

    for i := 0; i < len(characters); i++ {
        for j := 0; j < len(characters[i]); j++ {
            if characters[i][j].CharID == c[j].CharID {
                characters[j] = append(characters[i][:j], characters[i][j+1:]...)
                break
            }
        }
    }

    fmt.Printf("%T\n", c)
    return characters, nil
}

func validateID(id string) (int, error) {
    num, err := strconv.Atoi(id)
    if err != nil {
        return -1, err
    }
    return num, nil
}


func searchCharacter(id int) (domain.CharactersBB, error) {
    var c domain.CharactersBB
    for a := range characters {
        if c[a].CharID == id {
            return c, nil
        }
    }
    return domain.CharactersBB{}, ErrorCharactersNotFound
}

func init() {
    var c domain.CharactersBB

    url := baseurl + "characters"
    resp, _ := http.Get(url)
    Data, _ := ioutil.ReadAll(resp.Body)
    json.Unmarshal([]byte(Data), &c)
    characters = append(characters, c)
    //s, _ := json.MarshalIndent(characters, "", "\t")
    //fmt.Println(string(s))
    fmt.Printf("%T\n", characters)
}

func GetCharacters() ([]domain.CharactersBB, error) {
    return characters, nil
}

最佳答案

在这一行:

characters[j] = append(characters[i][:j], characters[i][j+1:]...)

您的内部数组计数器是j，您的外部数组计数器是i，因此看起来应该是这样的:

characters[i] = append(characters[i][:j], characters[i][j+1:]...)
//        ^^^ fix here

关于go - 删除多维数组中的值，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/60836560/