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该BackColor属性仅适用于单元格区域的背景 - 周围未使用的区域(如果单元格未填充控件)似乎默认为按钮面。
BackColor
有没有办法直接设置?或者使未使用的区域对其下方的表单/容器透明?
改用 BackColorBkg 属性