如果需要运行源代码，必须先安装 EasyX 图形库。 文件夹里面的 score.txt 文件是用于存放游戏最高分数据的，请勿删除，否者程序将无法运行。-If you need to run the source code, you must first install EasyX graphics library. Folder inside score.txt files are used to store game data, the highest score, do not de