Its a game X and O, where the first user inputs X and the second user inputs O, both of the users keep on entering X and O until one user has 3 X or 3 O in a row or column or diagonal, then that user wins

程序随机产生20—50根火柴，由人与计算机轮流拿，每次拿的数量不超过3根，拿到最后一根为胜。-20-50 program randomly generates a match, the person with the computer take turns, each time the number does not take more than three, to get the last one wins.

这个虽然是没有智能判别胜负的黑白棋，但是胜在程序简单，适合初学者看-Although this is not smart to judge the outcome of black and white, but wins in the program is simple, suitable for beginners to see