目录一、使用变量操作符 ${}1、${var##*/}2、${var#*.} 3、${var%/*}4、${var%%.*}二、basename和dirname1、basename2、dirname在写shell脚本中，经常会有需要对路径和文件名做处理。有时候犯不着用sed命令来操
What is the best method to set cross-browser consistence typography (font-size and line height) for whole site using em for Fixed width {Width:970px}, centered website?
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