在这种情况下，您应该向Deserializer请求 IDictionary<string, Match>

In this case, you should ask Deserializer for IDictionary<string, Match>

var mList= JsonConvert.DeserializeObject<IDictionary<string, Match>>(jsonstr);

第一个元素将具有键"40" ，其值将为Match实例

And the first element would have key "40" and the value will be the Match instance

换句话说，这部分:

"40": {
    "name": "Team A vs Team B",
    "value": {
      "home": 1,
      "away": 0
    }

将产生KeyValuePair:

will result in KeyValuePair:

key - "40"
value - Match { Name = "Team",  ... }