C ++ JsonCpp从arrayValue更改objectValue

Question

我想从slotList更改值。

slotList[1][1] = "1234";

我怎么解决这个问题？

这是我尝试过的：

JSON：

{

"slotList" : [

      [ "1452", "1452", "1452", "1452", "1452" ],
      [ "1452", "1452", "1452", "1452", "1452" ],
      [ "1452", "1452", "1452", "1452", "1452" ],
      [ "1452", "1452", "1452", "1452", "1452" ],
      [ "1452", "1452", "1452", "1452", "1452" ]
   ]
}

码：

if (bIsParsed == true)
{
    Json::Value slotList = root["slotList"];

    Json::Value slot = slotList[currentIndex];
    Json::Value value = "111"; // what is wrong? do not change anything! OMG!
    slot[selectIndex].swap(value);
}

Json::StyledWriter writer;
string jsonData = writer.write(root);

Answer 1

Json :: Value＆slotList = root [“ slotList”];

Json :: Value＆slot = slotList [currentIndex];

slot [selectIndex] =“ 1111”;

std :: cout << root.toStyledString（）<< std :: endl;

Answer 2

currentIndex需要取消unsigned 。 这是该API的一个不幸之处，请参见此处 。 （请参阅operator[](int) 。）