你好,
请尝试以下步骤下载VS帮助文档:
1.
双击Visual Studio 2017
安装文件>
Continue>Modify>Individual components>Code Tools ,选择
Help viewer
并安装:

2.安装完毕之后重新运行VS,菜单栏定位到
Help> Add
and Remove Help Content 选择您需要用到的文档下载,以便离线查询:
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