TODO plan

[chanchann]

TODO in the next few days...

[chanchann]

Json obj;
obj["123"] = 1;
obj["123"] = true;   // update op

Json arr;
arr.push_back("123");
arr.push_back(true);
arr[1] = 1;  // update op

[chanchann]

iterator like stl

include begin(), cbeing(), rbegin(), rcbegin() ....