코드 4-14 파일에 데이터 저장하기 [ch04/storage]

01    // String filename = "mydata.xml";
02    // String filename = "mydata.yml";
03    String filename = "mydata.json";
04     
05    void writeData()
06    {
07        String name = "Jane";
08        int age = 10;
09        Point pt1(100, 200);
10        vector<int> scores = { 80, 90, 50 };
11        Mat mat1 = (Mat_<float>(2, 2) << 1.0f, 1.5f, 2.0f, 3.2f);
12     
13        FileStorage fs(filename, FileStorage::WRITE);
14     
15        if (!fs.isOpened()) {
16            cerr << "File open failed!" << endl;
17            return;
18        }
19     
20        fs << "name" << name;
21        fs << "age" << age;
22        fs << "point" << pt1;
23        fs << "scores" << scores;
24        fs << "data" << mat1;
25     
26        fs.release();
27    }

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