https://blog.wongcw.com/2020/05/03/curl-7-7%e5%a4%a7%e7%89%88%e6%9c%ac%e7%99%bc%e5%b8%83%e6%94%af%e6%8c%81json%e8%bc%b8%e5%87%ba/
curl 7.7大版本發布支持JSON輸出