渐变背景,在窗体中从上至下依次绘制多个矩形,使它们的填充色从蓝变化到黑,就能很好地模拟出渐变效果-graded background, in which top-down windows were drawing more than rectangular, filling their color changes from blue to black. it will be able to simulate effects of graded
该函数将按照输入的优选对,输出相应的m序列和gold序列-The function will be preferred in accordance with the input that the output of the corresponding sequence of m sequences and gold