[//]: # (Author: bug)
[//]: # (Date: 2020-11-01 16:26:41)
### json 数据源
```xml
多态数据结构
使用;来分隔
```
递归遍历test/json_datas整个目录树,**按文件名排序后**依次将每个json数据当作一个记录读入。其中1.json文件内容如下
```json
{
"x1":true,
"x2":3,
"x3":128,
"x4":1,
"x5":11223344,
"x6":1.2,
"x7":1.23432,
"x10":"hq",
"x12": { "x1":10},
"x13":"B",
"x14":{"__type__": "DemoD2", "x1":1, "x2":2},
"v2":{"x":1, "y":2},
"v3":{"x":1.1, "y":2.2, "z":3.4},
"v4":{"x":10.1, "y":11.2, "z":12.3, "w":13.4},
"t1":"1970-01-01 00:00:00",
"k1":[1,2],
"k2":[2,3],
"k7":[2,3],
"k8":[[2,2],[4,10]],
"k9":[{"y1":1, "y2":true},{"y1":2, "y2":false}],
"k15":[{"__type__": "DemoD2", "x1":1, "x2":2}]
}
```