mealy machine
时间: 2024-06-13 08:06:15 浏览: 10
Mealy机是一种有限状态自动机,它的输出取决于当前状态和输入。与Moore机不同,Mealy机的输出不仅取决于当前状态,还取决于输入。Mealy机可以用于许多应用程序,例如序列检测和错误检测。下面是一个简单的Mealy机的Python实现,它接受一个二进制输入并输出相应的输出:
```python
class MealyMachine:
def __init__(self, states, inputs, outputs, transitions, initial_state):
self.states = states
self.inputs = inputs
self.outputs = outputs
self.transitions = transitions
self.current_state = initial_state
def transition(self, input):
if input not in self.inputs:
raise ValueError("Invalid input")
output = self.transitions[self.current_state][input]
self.current_state = output[0]
return output[1]
# Example usage
states = ['A', 'B', 'C']
inputs = [0, 1]
outputs = [0, 1]
transitions = {
'A': {0: ('B', 0), 1: ('C', 1)},
'B': {0: ('C', 0), 1: ('A', 1)},
'C': {0: ('A', 1), 1: ('B', 0)}
}
initial_state = 'A'
machine = MealyMachine(states, inputs, outputs, transitions, initial_state)
print(machine.transition(0)) # 输出:0
print(machine.transition(1)) # 输出:1
print(machine.transition(0)) # 输出:0
```
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