player_thread.start() print("player_thread created") machine_thread.start() print("player_thread created") player_thread.join() print("player_thread created") machine_thread.join() print("player_thread created") 什么调试语句都失败了

你可以尝试在创建进程时将 target 参数指定为函数对象，而不是函数的调用结果。修改后的代码如下：

if __name__ == '__main__':
    wg = WordGuessing()
    player_thread = Process(target=wg.run_player_game)
    machine_thread = Process(target=wg.run_machine_game)
    player_thread.start()
    machine_thread.start()
    player_thread.join()
    machine_thread.join()

这样应该就可以正常运行了。请注意，函数对象不要加括号，即不要写成 `wg.run_player_game()`，而应该写成 `wg.run_player_game`。