The role of the # in the URL [url hash] #!

http://www.ruanyifeng.com/blog/2011/03/url_hash.html


1. Correct path: http://www.example.com/?color=#fff
   Sometimes http://example.com/ ?color=%23fff is because # is transcoded

2, and the part after just changing #, the browser will only scroll to the corresponding position and will not reload the web page.


There are 8 cases in total, please refer to the above link for details