安装控件的菜单在D2005的时候就已经去掉了.在D2005的readme文件里的General Notes小节有这么一段话:The Component > Install Component command has been removed from the main menu. To install a component from source, create a new package, add your source files to it, and install it using Component> Install Packages, or open the dclusr package and add your source files.
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