4个按键随时切换流水灯状态怎么写
时间: 2024-11-25 15:20:46 浏览: 33
为了实现一个简单的4键控制流水灯状态的程序,我们可以假设这四个按键对应四种不同的灯的状态,比如开、关、快闪和慢闪。这里提供一个基本的伪代码示例:
```python
# 定义灯的状态和对应的按键
states = {
'off': 0,
'on': 1,
'fast_flash': 2,
'slow_flash': 3
}
keys = [1, 2, 3, 4] # 假设1-4键分别对应上述状态
# 初始化灯的状态
current_state = 'off'
def switch_light(key Pressed):
global current_state
if key in keys:
current_state = states[key]
update_light(current_state)
def update_light(state):
# 根据当前状态改变灯的实际显示
# 这里只是一个简化的例子,实际硬件操作会依赖于具体的电路设计
print(f"灯现在处于{state}模式")
# 针对每个按键绑定事件处理函数
for i in range(1, 5):
key_event = f'on_key_{i}'
setattr(sys.modules[__name__], key_event, lambda Pressed=i: switch_light(Pressed))
# 开始监听按键输入
while True:
# 模拟接收按键按下,实际应用中需要连接到硬件输入
pressed_key = get_key_pressed() # 获取按键值
getattr(sys.modules[__name__], f'on_key_{pressed_key}')()
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