摘要：
1. 画矩形边 public static void DrawRoundRectangle(this Graphics graphics, Pen pen, RectangleF rectangle, float radiusX, float radiusY = 0) { if (radiusY = 阅读全文
摘要：
1. 淡入淡出 /// <summary> /// 淡入显示图像 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click(object sende 阅读全文