1.改变颜色 字体颜色 背景颜色

XYDiagram dia = chartControl1.Diagram as XYDiagram;            dia.AxisX.Label.TextColor = Color.Wheat;//x轴颜色            dia.AxisY.Label.TextColor = Color.Wheat;//y轴颜色            dia.DefaultPane.BackColor = Color.Transparent;//透明            dia.DefaultPane.BorderVisible = false; //隐藏border