<P>最近搞Excel编程,想弄清楚这几组对象间的区别:</P> <P>Excel.Application、Excel._Application与Excel.ApplicationClass;</P> <P>Excel.Workbook、Excel._Workbook与Excel.WorkbookClass;</P> <P>Excel.Worksheet、Excel._Worksheet与Excel.WorksheetClass;</P> <P> </P>
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