https://github.com/ymcui/Chinese-ELECTRA#%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95
python run_finetuning.py \ --data-dir ${data-dir} \ --model-name ${model-name} \ --hparams params_cmrc2018.json
json文件如何获取
```