在办公室的椅子上剧烈运动

But! ! ! ! Neogeo's simulation is the most troublesome. I checked a lot of data and tested several different methods. The following is the simulation method explored by myself. It is not the only method, but for reference only.Britain 401.2 million 1.6 millionVoid Print (object sender, EventArgs e)The principle of opening and closing means opening to expansion and closing to modification. When the program needs to be expanded, the original code cannot be modified, but the original code should be expanded to achieve a hot plug effect. Therefore, a summary of one sentence is: in order to make the program scalable, easy to maintain and upgrade. To achieve this effect, we need to use interfaces and abstract classes, etc. We will mention this point in the later specific design.Liu Yifei, Lin Junjie ~ ~ ~202. X.X.16(2) According to the voltage of the controlled circuit to select the voltage of the time relay suction winding.