public static Item ToItem(this JObject jobject)这个方法有问题？

[yixiaopao]

public static Item ToItem(this JObject jobject)
{
var json = (JProperty)jobject.First;

        switch (json.Name) //？json.value?
        {
            case nameof(SecsFormat.List): return L(json.Value.Value<JArray>().Values<JObject>().Select(ToItem));
            case nameof(SecsFormat.ASCII): return A(json.Value.Value<string>());
            case nameof(SecsFormat.JIS8): return J(json.Value.Value<string>());
            case nameof(SecsFormat.Binary): return B(json.Value.Values<byte>());
            case nameof(SecsFormat.Boolean): return Boolean(json.Value.Values<bool>());
            case nameof(SecsFormat.F4): return F4(json.Value.Values<float>());
            case nameof(SecsFormat.F8): return F8(json.Value.Values<double>());
            case nameof(SecsFormat.I1): return I1(json.Value.Values<sbyte>());
            case nameof(SecsFormat.I2): return I2(json.Value.Values<short>());
            case nameof(SecsFormat.I4): return I4(json.Value.Values<int>());
            case nameof(SecsFormat.I8): return I8(json.Value.Values<long>());
            case nameof(SecsFormat.U1): return U1(json.Value.Values<byte>());
            case nameof(SecsFormat.U2): return U2(json.Value.Values<ushort>());
            case nameof(SecsFormat.U4): return U4(json.Value.Values<uint>());
            case nameof(SecsFormat.U8): return U8(json.Value.Values<ulong>());
            default: throw new ArgumentOutOfRangeException($"Unknown item format: {json.Name}");
        }
    }

[QinHaifeiCN]

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