使用Control.PointToClient方法 。 假设this指向有问题的表格：

 var relativePoint = this.PointToClient(new Point(X, Y)); 

或者干脆：

 var relativePoint = this.PointToClient(Cursor.Position); 

我会像这样使用PointToClient ：

 Point p = yourForm.PointToClient(Cursor.Position); //if calling it in yourForm class, just replace yourForm with this or simply remove it. 

如何使用Control.PointToClient尝试这样： –

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 public Form() { InitializeComponent(); panel = new System.Windows.Forms.Panel(); panel.Location = new System.Drawing.Point(90, 150); panel.Size = new System.Drawing.Size(200, 100); panel.Click += new System.EventHandler(this.panel_Click); this.Controls.Add(this.panel); } private void panel_Click(object sender, EventArgs e) { Point point = panel.PointToClient(Cursor.Position); MessageBox.Show(point.ToString()); }