—— 请按键盘 空白键 开始游戏 ——

The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.
Sometimes the hardest thing in life is to know which bridge to cross and which to burn.
每一个心理行为都在生活的经济中有其位置。
The only way to get rid of a temptation is to yield to it.