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I was running a report that accidentally tried to pass a dataframe with zero rows to htmlTable(). That generated the following error: Error in css.cell[row_nr ...

要求：在数据库中读取菜单的个数，然后根据读取出来的菜单个数创建htmltable中td的个数； 问题是：怎样创建td,td中的文本内容为菜单内容，从数据库中读取出来的，怎样放到td的空白上？怎样添加td的事件和属性？