建议模板目录功能增加对多套模板的支持

```
What steps will reproduce the problem?
1. 
建议模板目录功能增加对多套模板的支持（默认模板，风格1�
��风格2），如果风格1中调用本风格目录中不存在 
的文件时，取默认模板目录同名文件
2.
3.

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?


Please provide any additional information below.


```

Original issue reported on code.google.com by `lxq73...@gmail.com` on 13 Mar 2012 at 5:02
