基于jython pyang jnc将yang文件生成java对象，自动安装jython、pyang、jnc
java -jar /Users/lig/jython2.7.1/jython.jar setup.py install
java -jar /Users/lig/jython2.7.1/jython.jar bin/pyang -f jnc --plugindir /Users/lig/Documents/workspace/play-yang/yang-codegen/src/main/resources --jnc-output /Users/lig/Documents/workspace/play-yang/yang-codegen/target/generated-sources/java/com.air --jnc-classpath-schema-loading /Users/lig/Documents/workspace/play-yang/yang-example/src/main/yang/demo.yang
play-yang
pyang -f jnc --plugindir /Users/lig/Documents/workspace/play-yang/yang-codegen/src/main/resources --jnc-output /Users/lig/Documents/workspace/play-yang/yang-codegen/target/generated-sources/java/com.air --jnc-classpath-schema-loading /Users/lig/Documents/workspace/play-yang/yang-example/src/main/yang/demo.yang