请问是否有中文帮助？

[superhanliu]

请问是否有中文帮助？

[aliang]

hi,superhanliu.

Some of the tutorials have been translates into chinese.
You might get start here:
http://extjs.com/learn/Tutorial:Introduction_to_Ext_%28Chinese%29

[perthkit]

use http://www.google.com/language_tools