一个甲、乙双方参赛，裁判参与的乒乓球比赛游戏模拟机。用8个发光二极管排成一条直线，以中点为界，两边各代表参赛双方的位置，其中点亮的发光二极管代表“乒乓球”的当前位置，点亮的发光二极管依次由左向右或由右向左移动。当球运动到某方的最后一位时，参赛者应立即按下自己一方的按钮，即表示击球，若击中，则“球”向相反方向运动，若未击中，则对方得1分。设置自动计分电路，双方各用二位数码管来显示计分，每局11分。每人发2球，7局4胜制。自动几分并显示-A A, B both play, the referee in the table tennis game simulator. With 8 LEDs arranged in a straight line, the midpoint for the community, representatives of both sides of the position of participating parties, including light-emitting diodes for " table tennis"　in the current location, followed by light-emitting diode, or from left to right moving from right to left. When the ball movement to a party the last one, the participant should immediately press the button on its side, that means the ball, if hit, the " ball"　in the opposite direction, if not hit, the other was a points. Automatic scoring circuit, each side with two digital displays scoring 11 points per game. Each made 2 balls, 7 Council 4 match. Automatically sort and display