安装字体
yum -y install wqy-microhei-fonts
修改字体
\cp /usr/share/fonts/wqy-microhei/wqy-microhei.ttc /usr/share/fonts/dejavu/DejaVuSans.ttf
注:\cp 表示还原命令原意,直接cp = cp -i,\cp = 只用cp