C ++-jsoncpp Learning

Jsoncpp is used by the client, so I learned jsoncpp as required by the project. I have never used xml before, but I feel that it is quite useful when I come into contact with json.

Reference address http://jsoncpp.sourceforge.net/class_json_1_1_value.html

 

# Include <QtCore/QCoreApplication>

# Include <json/json. h>

# Include <string>

Using std: string;

Int main (int argc, char * argv [])

{

Json: Reader reader;

Json: Value json_object;

Const char * json_document = "{/" age/": 26,/" person/": [{/" id/": 1,/" study /": [{/"language/":/"chinese/"}],/"name/":/"chen/"}, {/"id/": 2, /"name/":/"zhang/"}],/"name/":/"huchao /"}";

If (! Reader. parse (json_document, json_object) // read the string and convert it to json format

Return 0;

 

Int a1 = 0;

Json_object ["name"] = "wang"; // modify data

Json_object ["person"] [a1] ["study"] [a1] ["language"] = "English ";

 

Std: cout <json_object ["name"] <std: endl; // read data

Std: cout <json_object ["person"] [a1] ["study"] [a1] ["language"] <std: endl;

Std: cout <json_object ["age"] <std: endl;

 

Json: Value json_object;

Json_object.append ("11"); // Add the array format

Json_object.append ("12 ");

Json_object.append ("13 ");

 

Return a.exe c ();

}

 

Download jsoncpp and the program contains the jsoncpp source code.