MNN/tools/train/dataConfig.json

{
    "batch":1000,
    "data":
    [
        {
            "name":"x",
            "path":"input.txt",
            "dim":[1000, 9],
            "type":"float"
        },
        {
            "name":"y",
            "path":"label.txt",
            "dim":[1000, 1],
            "type":"float"
        }
    ]
}