w3c school的下载打包，CHM格式文档，做WEB的几乎都会查阅这个网站，现在将其打包做成CHM格式文档，方便在本地查阅。注意：最上部的分栏目在有些系统上不能正常显示，但链接有效，直接点击即可，使用和W3C SCHOOL网站相同。-w3c school download package, CHM format documents, so almost all access to this WEB site, has now been made CHM format documentation package to facilitate local access. Note: the top of the sub-sections in some systems can not be shown, but links, and direct clicks, use, and W3C SCHOOL same site.