• This is a good start, but you need to provide something other than a null value when the Tree Viewer asks for the column text for a particular item.

    很好的开始但是为了一个特殊条目TreeViewer需要栏目文本时,需要提供一些内容,而不仅仅是一个

    youdao

  • Path locationReturns an element or null if it doesn't exist in a non-modifiable tree.

    路径位置——返回一个元素如果不可修改的存在该元素,则返回null

    youdao

  • The single quotation mark in front of the null list is used to tell Scheme that you are using as data and not as a part of your parse tree.

    列表前面引号用来告诉scheme正在使用作为数据不是用它作为解析树的一部分

    youdao

  • This method returns the children of the given tree node, or it returns null if the leaf tree node is encountered.

    方法返回给定节点子节点,或者如果遇到叶子节点,返回null

    youdao

  • This method returns the children of the given tree node, or it returns null if the leaf tree node is encountered.

    方法返回给定节点子节点,或者如果遇到叶子节点,返回null

    youdao

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