在mql4中处理json字符串 [英] Processing json string in mql4

问题描述

我收到了以下字符串:

{"records":[{"id":"rec4haaOncoQniu8U","fields":{"orders1":5},"createdTime":"2020-02-08T09:08:22.000Z"}]}

我不了解如何使用位于以下位置的"JAson.mqh"库在mql4中处理和分离json的值:

I am not understanding how I can process and separate the values of the json in mql4 using the "JAson.mqh " library, located here: https://www.mql5.com/en/code/13663

我需要位于字段"下的订单"值，值= 5 . 唯一更改的键"是字段"值内的键.

I need the values of "orders" located under "fields" , value = 5. the only "KEYS" that changes are the keys within the "fields" values.

我希望能够通过以下方式获取值:

i would like to be able to get the values with something like this:

string value1 = Result[0].["fields"].["orders1"]; //5
string value2 = Result[0].["fields"].["orders2"];

请让我知道我能做什么.

Please let me know what I can do.

推荐答案

您可以使用以下格式获取值.请注意，必须将其强制转换为类型. (我将其强制转换为int，因为它是JSON中的类型，但是您也可以将其强制转换为string)

You can get the value using the following format. Note that it has to be casted to a type. (I have casted it to int as it is the type it is in the JSON, but you can cast it to string as well)

int value1 = json["records"][0]["fields"]["orders1"].ToInt(); // if you want to make it a string use ToStr() instead of ToInt()

这是我所做的事情的完整例子

Here is a full example of what I did

string jsonString = "{\"records\": [{\"id\": \"rec4haaOncoQniu8U\",\"fields\": {\"orders1\": 5 }\"createdTime\": \"2020-02-08T09:08:22.000Z\"}]}";

if(json.Deserialize(jsonString))
   Alert(json["records"][0]["fields"]["orders1"].ToInt());

希望有帮助.

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