[DOS命令] 比较两个或多个文件
[WebDesign]The word comp is an abbreviation of the phrase
comprehensive dummy, and is a term that comes from
the print design world. It's a complete simulation of a
printed layout that's created before the layout goes to
press. In translating this term to web design, a comp is
an image of a layout that's created before we begin to
prototype the design in HTML.