实现了位图的任意缩放(邻点法和线性插值法),任意旋转(邻点法和线性插值法),全部源代码,没有使用其他库,是纯粹代码实现的 -Realize the arbitrary bitmap scaling (o-point method and linear interpolation), arbitrary rotation (o-point method and linear interpolation method), all source code, do not use the other l