此打字游戏采用取系统时间生成随机数来完成的,打开letter.exe文件,输入1则进入游戏 输入2,选择游戏难度 3或Ese退出游戏. -This typing game check the system time used to generate random numbers to be completed and opened letter.exe document, enter an input into the game 2, or 3 to choose the game d