查看xml，需要用到xmllint，这个是windows版本的，需要放到path里面，其实就是在gvim里能找到就行。然后再gvim的配置中加上这个
let mapleader = ","
map <silent> <leader>px : %!xmllint % --format<cr>
这样在打开xml后，键盘输入,px，就能得到xml的pretty xml效果。
对于编辑，需要xmledit - A filetype plugin to help edit XML, HTML, and SGML documents ，用这个覆盖掉原来gvim自带的xml.vim，在编辑xml文件时就能省很多事了，照抄文档里说。It allows you to jump to the beginning or end of the tag block your cursor is in. '%' will jump between '<' and '>' within the tag your cursor is in. When in insert mode and you finish a tag (pressing '>') the tag will be completed. If you press '>' twice it will complete the tag and place the cursor in the middle of the tags on it's own line.
