在Linq-to-
JSON中，JValue表示原始值（字符串，数字，布尔值等）。它实现了IComparable<JValue>，因此Json.NET会为您处理原始值的排序。

在此基础上，您将需要递归JToken并行地降低两个对象层次结构。当您遇到具有不同.Net类型，不同属性（如果不是JValue）或具有不同值（如果a
JValue）的第一个标记时，您需要返回比较值。

请注意以下几点：

• 比较方法应该是自反的，反对称的和可传递的。
• 需要以某种一致的方式按类型对不同.Net类型的容器令牌进行排序。
• 的孩子令牌JArray和JConstructor排序。
• 的子标记JObject不是，因此需要以稳定，对称的方式进行比较。以 属性名称的 顺序行走似乎是可行的。
• 没有明显的比较方法JRaw，所以不要尝试让异常抛出。

以下是原型实现：

public class JTokenComparer : IComparer<JToken>
{
    public static JTokenComparer Instance { get { return instance; } }

    static JTokenComparer instance;

    static JTokenComparer()
    {
        instance = new JTokenComparer();
    }

    readonly Dictionary<Type, KeyValuePair<int, IComparer<JToken>>> dict;

    JTokenComparer()
    {
        dict = new Dictionary<Type, KeyValuePair<int, IComparer<JToken>>>
        {
            // Order chosen semi-arbitrarily.  Putting values first seems reasonable though.
            {typeof(JValue), new KeyValuePair<int, IComparer<JToken>>(0, new JValueComparer()) },
            {typeof(JProperty), new KeyValuePair<int, IComparer<JToken>>(1, new JPropertyComparer()) },
            {typeof(JArray), new KeyValuePair<int, IComparer<JToken>>(2, new JArrayComparer()) },
            {typeof(JObject), new KeyValuePair<int, IComparer<JToken>>(3, new JObjectComparer()) },
            {typeof(JConstructor), new KeyValuePair<int, IComparer<JToken>>(4, new JConstructorComparer()) },
        };
    }

    #region IComparer<JToken> Members

    public int Compare(JToken x, JToken y)
    {
        if (x is JRaw || y is JRaw)
            throw new InvalidOperationException("Tokens of type JRaw cannot be sorted");
        if (object.ReferenceEquals(x, y))
            return 0;
        else if (x == null)
            return -1;
        else if (y == null)
            return 1;

        var typeData1 = dict[x.GetType()];
        var typeData2 = dict[y.GetType()];

        int comp;
        if ((comp = typeData1.Key.CompareTo(typeData2.Key)) != 0)
            return comp;
        if (typeData1.Value != typeData2.Value)
            throw new InvalidOperationException("inconsistent dictionary values"); // Internal error
        return typeData2.Value.Compare(x, y);
    }

    #endregion
}

abstract class JTokenComparerBase<TJToken> : IComparer<JToken> where TJToken : JToken
{
    protected TJToken CheckType(JToken item)
    {
        if (item != null && item.GetType() != typeof(TJToken))
            throw new ArgumentException(string.Format("Actual type {0} of token \"{1}\" does not match expected type {2}", item.GetType(), item, typeof(TJToken)));
        return (TJToken)item;
    }

    protected bool TryBaseCompare(TJToken x, TJToken y, out int comparison)
    {
        CheckType(x);
        CheckType(y);
        if (object.ReferenceEquals(x, y))
        {
            comparison = 0;
            return true;
        }
        else if (x == null)
        {
            comparison = -1;
            return true;
        }
        else if (y == null)
        {
            comparison = 1;
            return true;
        }
        comparison = 0;
        return false;
    }

    protected abstract int CompareDerived(TJToken x, TJToken y);

    protected int TokenCompare(JToken x, JToken y)
    {
        var tx = CheckType(x);
        var ty = CheckType(y);
        int comp;
        if (TryBaseCompare(tx, ty, out comp))
            return comp;
        return CompareDerived(tx, ty);
    }

    #region IComparer<JToken> Members

    int IComparer<JToken>.Compare(JToken x, JToken y)
    {
        return TokenCompare(x, y);
    }

    #endregion
}

abstract class JContainerOrderedComparerBase<TJToken> : JTokenComparerBase<TJToken> where TJToken : JContainer
{
    protected int CompareItemsInOrder(TJToken x, TJToken y)
    {
        int comp;
        // Dictionary order: sort on items before number of items.
        for (int i = 0, n = Math.Min(x.Count, y.Count); i < n; i++)
            if ((comp = JTokenComparer.Instance.Compare(x[i], y[i])) != 0)
                return comp;
        if ((comp = x.Count.CompareTo(y.Count)) != 0)
            return comp;
        return 0;
    }
}

class JPropertyComparer : JTokenComparerBase<JProperty>
{
    protected override int CompareDerived(JProperty x, JProperty y)
    {
        int comp;
        if ((comp = x.Name.CompareTo(y.Name)) != 0)
            return comp;
        return JTokenComparer.Instance.Compare(x.Value, y.Value);
    }
}

class JObjectComparer : JTokenComparerBase<JObject>
{
    protected override int CompareDerived(JObject x, JObject y)
    {
        int comp;
        // Dictionary order: sort on items before number of items.
        // Order both property sequences to preserve reflexivity.
        foreach (var propertyComp in x.Properties().OrderBy(p => p.Name).Zip(y.Properties().OrderBy(p => p.Name), (xp, yp) => JTokenComparer.Instance.Compare(xp, yp)))
            if (propertyComp != 0)
                return propertyComp;
        if ((comp = x.Count.CompareTo(y.Count)) != 0)
            return comp;
        return 0;
    }
}

class JArrayComparer : JContainerOrderedComparerBase<JArray>
{
    protected override int CompareDerived(JArray x, JArray y)
    {
        int comp;
        if ((comp = CompareItemsInOrder(x, y)) != 0)
            return comp;
        return 0;
    }
}

class JConstructorComparer : JContainerOrderedComparerBase<JConstructor>
{
    protected override int CompareDerived(JConstructor x, JConstructor y)
    {
        int comp;
        if ((comp = x.Name.CompareTo(y.Name)) != 0)
            return comp;
        if ((comp = CompareItemsInOrder(x, y)) != 0)
            return comp;
        return 0;
    }
}

class JValueComparer : JTokenComparerBase<JValue>
{
    protected override int CompareDerived(JValue x, JValue y)
    {
        return Comparer<JToken>.Default.Compare(x, y); // JValue implements IComparable<JValue>
    }
}

经过严格测试的原型小提琴。