比如说用说用c#语言写，应该怎么办？谁可以告诉我一下吗？
我先在一点点思路也没有啊
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去 到msdn找个例子
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C# NotePad
http://www.csharphelp.com/archives/archive76.html
NotePad Like Editor In C#
http://www.csharphelp.com/archives/archive94.html
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up