Then we move the drawing point down to 50 50, and set the line intensity to 100%.

然后我们将绘图点向下移动到 50 50，并将线条强度设置为 100%。

First, we reset, which clears the screen, moves the drawing point of the electron gun to zero-zero, and sets the brightness of lines to zero.

首先，我们重置，清除屏幕，将电子枪的绘图点移动到零-零，并将线条的亮度设置为零。