This paper demonstrates that the visual and graphical repository can be established through extending the SVG standard, introducing C# script and customizing component into repository. The graphical system, which uses the technique of Visual Studio.Net, supports the secondary object-oriented development. It allows the user to not only add all kinds of component objects, but also add properties and functions for the object. In addition, the graphical system has a very good property of customization. It supports the C# script and the zoom in/zoom out of pictures. The file formats used in this system are XML and SVG.
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