获得节点所有权（此方法的执行需要拥有相应的权限）。

takeOwnership()

代码例

如果以admin身份运行以下代码，运行结果将会设置admin为节点所有者。

var node = companyhome.childByNamePath("TEST_FILE_0.TXT");

node.setOwner("fred.bloggs"); // owner is now 'fred.bloggs'

//...

node.takeOwnership(); // currently authenticated user running script is 'admin'

model.owner = node.getOwner();