用C++实现的单机推箱子，本程序只设置了三个关卡，如果想增加关卡，观看者可以看懂代码后自己用程序画图增加关卡。-Achieve stand-alone Sokoban with C++, the program is only set up three checkpoints, if you want to increase the hurdles, the viewer can read the code own program drawing increased checkpoints.