[zk: localhost:2181(CONNECTED) 1] helpZooKeeper -server host:port cmd args     stat path [watch]    set path data [version]    ls path [watch]    delquota [-n|-b] path    ls2 path [watch]     setAcl path acl    setquota -n|-b val path    history     redo cmdno    printwatches on|off    delete path [version]    sync path    listquota path    rmr path    get path [watch] #取到节点中的数据    create [-s] [-e] path data acl  #创建一个节点，acl是权限控制的不管    addauth scheme auth    quit     getAcl path    close     connect host:port[zk: localhost:2181(CONNECTED) 2]

 节点有两种类型

短暂类型的，持久类型的

znode有四种形式的目录节点，默认是persistent