mqtt客户端，适合初学者参考，使用的是mqttnet三方包

#  Json.NET [](https://www.nuget.org/packages/Newtonsoft.Json/) [](https://dev.azure.com/jamesnk/Public/_build/latest?definitionId=8) Json.NET is a popular high-performance JSON framework for .NET ## Serialize JSON ```csharp Product product = new Product(); product.Name = "Apple"; product.Expiry = new DateTime(2008, 12, 28); product.Sizes = new string[] { "Small" }; string json = JsonConvert.SerializeObject(product); // { // "Name": "Apple", // "Expiry": "2008-12-28T00:00:00", // "Sizes": [ // "Small" // ] // } ``` ## Deserialize JSON ```csharp string json = @"{ 'Name': 'Bad Boys', 'ReleaseDate': '1995-4-7T00:00:00', 'Genres': [ 'Action', 'Comedy' ] }"; Movie m = JsonConvert.DeserializeObject<Movie>(json); string name = m.Name; // Bad Boys ``` ## LINQ to JSON ```csharp JArray array = new JArray(); array.Add("Manual text"); array.Add(new DateTime(2000, 5, 23)); JObject o = new JObject(); o["MyArray"] = array; string json = o.ToString(); // { // "MyArray": [ // "Manual text", // "2000-05-23T00:00:00" // ] // } ``` ## Links - [Homepage](https://www.newtonsoft.com/json) - [Documentation](https://www.newtonsoft.com/json/help) - [NuGet Package](https://www.nuget.org/packages/Newtonsoft.Json) - [Release Notes](https://github.com/JamesNK/Newtonsoft.Json/releases) - [Contributing Guidelines](https://github.com/JamesNK/Newtonsoft.Json/blob/master/CONTRIBUTING.md) - [License](https://github.com/JamesNK/Newtonsoft.Json/blob/master/LICENSE.md) - [Stack Overflow](https://stackoverflow.com/questions/tagged/json.net)