模拟小蜜蜂游戏主要是因为通过keydown来驱动是在两个按键同时持续按下的情况下时 这两个按键的keydown不能持续触发 只能同时触发一次 而后一个按键持续触发-Simulation game was mainly due to the small bee keydown driven by two buttons at the same time, keep pressing the case when the two buttons to trigger the keydown can not be sustained once the latter can only be triggered by a button at the same time continue to trigger