官方说明：Compress content before it is delivered to the client
检查是否安装模块：
[crayon-6956c33a4e72417794073...
mod_deflate.so: undefined symbol: inflateEnd
Apache2.4.9增加压缩模块的时候遇到一个报错"httpd: Syntax error on line 103 of /byrd/server/httpd-2.4.9/conf/httpd.co...