For the description of the word gadget, please click the link below~~~
https://forum.huaweicloud.com/thread-8391-1-1.html
If you don't want to read the article and want to try the gadget immediately, please click below~~~
http://fe2e6fd859034d40a3269f7b541e31de.apigw.cn-north-1.huaweicloud.com/