(self,child)
删除一个child 节点\n
        @param child: Child Object
删除一个child 节点\n
删除一个child 节点 \ n
def dropChild(self,child):
        '''删除一个child 节点\n
        @param child: Child Object 
        '''
        key = child.getName()
        try:
            del self._childs[key]
        except Exception,e:
            log.msg(str(e))
def dropChild ( self , child ) : key = child . getName ( ) try : del self . _childs [ key ] except Exception , e : log . msg ( str ( e ) )