This method takes a QName that identifies the variable and returns an object appropriate to the underlying data model.

该方法取得标识变量的QName，并根据底层的数据模型返回适当的对象。

youdao

Specifies that an argument is passed in such a way that the called procedure or property cannot change the value of a variable underlying the argument in the calling code.

指定按如下方式传递参数：被调用的过程或属性不能更改调用它的代码中参数下面的变量的值。

youdao

Specifies that an argument is passed in such a way that the called procedure or property cannot change the value of a variable underlying the argument in the calling code.

指定按如下方式传递参数：被调用的过程或属性不能更改调用它的代码中参数下面的变量的值。

youdao