学生选课教务系统上不去，可换换用接口登录选课，可能稍有改善，一共12个节点
http://202.207.0.236:8081
http://202.207.0.236:8082
http://202.207.0.236:8083
http://202.207.0.236:8084
http://202.207.0.236:8085
http://202.207.0.236:8086
http://202.207.0.237:8081
http://202.207.0.237:8082
http://202.207.0.237:8083
http://202.207.0.237:8084
http://202.207.0.237:8085
http://202.207.0.237:8086