yum提示"Another app is currently holding the yum lock"可能是系统自动升级正在运行，yum在锁定状态中可以通过强制关掉yum进程：rm -f /var/run/yum.pid然后就可以使用yum了
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update v9_picture set thumb=replace(thumb,'www.sxedu.org.cn','61.160.211.241')
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http://www.example.com/static/image/common/player.swf?soundFile=http://www.test.com/1.mp3
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