选取至文字开头 Select Line Start
选取至文字尾端 Select Line End
选取至文字编辑器尾端 Select Text End
选取至文字编辑器开头 Select Text Start
例如，假设您想要从子表单的文字方块复制选取文字到剪贴簿。
For example, suppose you want to copy selected text from the child form's text box to the Clipboard.
在标题中使用你选取的关键词(最重要)，然后大小标题和文字中也尽量包含。
Use the keyphrase you have chosen in your title (most important), your headers (when appropriate), and within the text.
如何使用栏位模式和连续资料流模式的相关资讯以及基本文字选取资讯。
Information on how to use column mode and continuous stream mode as well as basic text selection information.
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