输入三角形的三个顶点坐标，以及变换方式，通过矩阵的运算进行平移、旋转、缩放变换，结果显示原三角形和变换后的三角形。右击TestTrans_1_2_3运行-Enter the triangle s three vertex coordinates, and the way of transformation, then through matrix operations for translation, rotation, scale transformation, the result can