例如:
Json::Reader reader;
Json::Value val;
ifstream file("JSON/test.json");
bool success = reader.parse(file, val, false);
vector<string> obj = val.getMemberNames();
for (int i = 0; i < val.size(); i++)
{
// switch type of value
switch (val.get(obj.at(i), "default").type())
{
case stringValue:
cout << "I'm string" << endl;
... need to save **membername** and **value**
break;
case intValue:
cout << "I'm int" << endl;
... need to save **membername** and **value**
break;
case nullValue:
cout << "I'm null" << endl;
break;
case arrayValue:
... code to parse an array (with nested sure) ...
... need to save
break;
case objectValue:
... code to parse an object (with nested sure) ...
... need to save
break;
}
}
示例 JSON文件(JSON / test.json):
{
"layout": "fit",
"xtype": "viewport",
"height": 200,
"style": {
"backgroundColor": "46f0a8"
},
"items":
[
{
"title": "Management Console",
"padding": "10 10 10 10",
"bodyPadding": 10,
"autoScroll": true,
"items2": [1, 2, 3]
}
]
}
在数组项目中,我们可以看到另一个名为 items2 的数组(嵌套)。
数组可能会遇到以下情况:
array[Jacob, Joseph] or
array[{name: Jacob, name: Joseph}] or
array[{name: Jacob}, {name: Joseph}]
对于物体,它是相似的。在每个字段中,当然可以是许多嵌套对象/数组。如何在C ++变量中保存数据?
答案 0 :(得分:0)
你想要使你的主解析函数递归。然后使用像vector这样的STL类,它允许您为数据动态分配更多存储空间。