http://codepad.org/
https://ideone.com/
http://gist.github.com/
https://pastebin.com/
https://anotepad.com/
json2golanghttps://www.qetool.com/sql_json_go/json.html
https://tool.lu/coderunner/
https://www.w3cschool.cn/webide
https://www.w3cschool.cn/tryrun/runcode?lang=php