释义：
- 作者有意选择将所有int都返回，
Int64
以避免溢出错误，并且检查起来更容易（对于Json.NET内部而言，不是您自己） - 您可以使用自定义转换器（如链接答案中发布的转换器）来解决此问题。
这是一个真正的通用转换器；不能完全确定
CanConvert支票，但对我有用的重要部分是允许
typeof(object)：
/// <summary>/// To address issues with automatic Int64 deserialization -- see https://stackoverflow.com/a/9444519/1037948/// </summary>public class JsonInt32Converter : JsonConverter{ #region Overrides of JsonConverter /// <summary> /// only want to deserialize /// </summary> public override bool CanWrite { get { return false; } } /// <summary> /// Placeholder for inheritance -- not called because <see cref="CanWrite"/> returns false /// </summary> public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) { // since CanWrite returns false, we don't need to implement this throw new NotImplementedException(); } /// <summary> /// Reads the JSON representation of the object. /// </summary> /// <param name="reader">The <see cref="T:Newtonsoft.Json.JsonReader"/> to read from.</param><param name="objectType">Type of the object.</param><param name="existingValue">The existing value of object being read.</param><param name="serializer">The calling serializer.</param> /// <returns> /// The object value. /// </returns> public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) { return (reader.TokenType == JsonToken.Integer) ? Convert.ToInt32(reader.Value) // convert to Int32 instead of Int64 : serializer.Deserialize(reader); // default to regular deserialization } /// <summary> /// Determines whether this instance can convert the specified object type. /// </summary> /// <param name="objectType">Type of the object.</param> /// <returns> /// <c>true</c> if this instance can convert the specified object type; otherwise, <c>false</c>. /// </returns> public override bool CanConvert(Type objectType) { return objectType == typeof(Int32) || objectType == typeof(Int64) || // need this last one in case we "weren't given" the type // and this will be accounted for by `ReadJson` checking tokentype objectType == typeof(object) ; } #endregion}
