PrivateSubMenuWriteCard_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlestoolStripMenuItem7.Click,toolStripMenuItem6.Click,toolStripMenuItem5.Click,toolStripMenuItem4.Click,toolStripMenuItem3.Click,toolStripMenuItem2.Click,toolStripMenuItem1.ClickEndSub比如说这个我如果这几个控件调用这个click事件后如何把object的sender转换为System.Windows.Forms.ToolStripMenuItem对象
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