我的目标是从 "病毒追踪器 "API中检索JSON数据，并将其解析成一个标签。这是为我的IB个人项目，所以我刚开始学习c#。找到这段旧的代码，并试着修复它，它能用基本的GET API工作，但它不能用我正在使用的那个。(英语不是我的主要语言)
邮政员的答复
{
"results": [
{
"total_cases": 5954607,
"total_recovered": 2622507,
"total_unresolved": 2255875,
"total_deaths": 363208,
"total_new_cases_today": 53700,
"total_new_deaths_today": 1659,
"total_active_cases": 45257,
"total_serious_cases": 2698001,
"total_affected_countries": 213,
"source": {
"url": "https://thevirustracker.com/"
}
}
],
"stat": "ok"
}
C#代码
//Creating Client connection
RestClient restClient = new RestClient("https://thevirustracker.com/free-api?global=stats");
//Creating request to get data from server
RestRequest restRequest = new RestRequest("total_cases", Method.GET);
// Executing request to server and checking server response to the it
IRestResponse restResponse = restClient.Execute(restRequest);
// Extracting output data from received response
string response = restResponse.Content;
// Parsing JSON content into element-node JObject
var jObject = JObject.Parse(restResponse.Content);
//Extracting Node element using Getvalue method
string cases = jObject.GetValue("total_cases").ToString();
label1.Text = (cases);
ERROR
An unhandled exception of type 'Newtonsoft.Json.JsonReaderException' occurred in Newtonsoft.Json.dll
Unexpected character encountered while parsing value: <. Path '', line 0, position 0.
我的这段代码的最终目标是，label1显示 "5954607"
请记住，我真的是新手，所以如果你能解释一下你对代码的修改，我真的很感激。
你没有正确使用RestRequest或者初始化RestClient错误。
如果你在RestClient中使用的那个url是整个url，那么你就不需要在RestRequest中使用 "资源"。
由于这个错误，你得到了一个HTML响应，并以错误的方式显示出来。
解析值时遇到意外字符：<。路径''，第0行，位置0。
的值：<。restResponse.Content 可能从 <html 而这不是有效的JSON。
Json的有效载荷比你编码的要复杂一些。结果对象持有一个数组，其中有你的stat属性的对象。
把这些修正放在一起就得到了这个代码。
RestClient restClient = new RestClient("https://thevirustracker.com/free-api?global=stats");
//Creating request to get data from server
RestRequest restRequest = new RestRequest(null, DataFormat.Json);
// Executing request to server and checking server response to the it
IRestResponse restResponse = restClient.Execute(restRequest);
// Extracting output data from received response
string response = restResponse.Content;
// Parsing JSON content into element-node JObject
var jObject = JObject.Parse(restResponse.Content);
//Extracting
// the object has a results property
// that is an array with one item (zero-based)
// on index 0 there is an object
// that has a property total_cases
string cases = (string) jObject["results"][0]["total_cases"];
label1.Text = (cases);