Please study some related Salesforce technology in advance,

官方网站:

https://www.salesforce.com/cn/

Salesforce 百度百科

https://baike.baidu.com/item/Salesforce/757610

Salesforce Wiki:

https://en.wikipedia.org/wiki/Salesforce.com

Salesforce入门学习介绍

https://www.cnblogs.com/cjfcqnu/p/5821961.html

博客园：

https://www.cnblogs.com/zero-zyq/p/5275134.html

https://www.cnblogs.com/zitjubiz/p/an-architects-guide-to-the-salesforce.html

And you can also register one private Salesforce Org to make some practice and demo for Dev.

https://developer.salesforce.com/signup

Thanks.