C# 如何在C中对复杂的Json正文进行字符串格式化#

我有以下代码

var UUID = "ExampleX";
var NumID = "ExampleY";
var Payload = string.Format("{\"API1\":{\"API2\":\"API3\",\"API4\":5},\"API6\":\"{0}\",\"API7\":\"{1}\",\"API8\":\"API8\"}",UUID,NumID);

我试图用UUID和NumID替换{0}和{1}的输入，但是我一直得到以下错误

Input string was not in a correct format.

我仍在学习如何编写任何帮助代码，非常感谢

您可以将Json字符串设置为

JObject

，然后替换API6和API7值。比如说,

var json = "{\"API1\":{\"API2\":\"API3\",\"API4\":5},\"API6\":\"{0}\",\"API7\":\"{1}\",\"API8\":\"API8\"}";
var jo = JObject.Parse(json);
jo["API6"] = UUID;
jo["API7"] = NumID;
var Payload = jo.ToString();

输出

{
  "API1": {
    "API2": "API3",
    "API4": 5
  },
  "API6": "ExampleX",
  "API7": "ExampleY",
  "API8": "API8"
}

---

您必须用双括号转义json括号，以便它们不会被解释为占位符：

var Payload = string.Format("{{\"API1\":{{\"API2\":\"API3\",\"API4\":5}},\"API6\":\"{0}\",\"API7\":\"{1}\",\"API8\":\"API8\"}}",UUID,NumID);