帮我写一个事故树分析的代码

事故树分析是一种常用的安全分析方法，可用于分析和预测各种事故的发生概率和后果。以下是一个简单的事故树分析代码示例，供您参考：

# 定义逻辑门的类
class Gate:
    def __init__(self, input1, input2, output):
        self.input1 = input1
        self.input2 = input2
        self.output = output

    def evaluate(self, inputs):
        input1_value = inputs[self.input1]
        input2_value = inputs[self.input2]
        if self.output in inputs:
            return inputs[self.output]
        else:
            return self.logic(input1_value, input2_value)

    def logic(self, input1_value, input2_value):
        pass

# 定义与门
class AndGate(Gate):
    def logic(self, input1_value, input2_value):
        return input1_value and input2_value

# 定义或门
class OrGate(Gate):
    def logic(self, input1_value, input2_value):
        return input1_value or input2_value

# 定义非门
class NotGate(Gate):
    def __init__(self, input, output):
        super().__init__(input, None, output)

    def logic(self, input_value, input2_value):
        return not input_value

# 定义事故树的类
class FaultTree:
    def __init__(self, inputs, outputs, gates):
        self.inputs = inputs
        self.outputs = outputs
        self.gates = gates

    def evaluate(self, inputs):
        values = {}
        for name, value in inputs.items():
            values[name] = value
        for gate in self.gates:
            output_name = gate.output
            values[output_name] = gate.evaluate(values)
        results = {}
        for name in self.outputs:
            results[name] = values[name]
        return results

# 定义一个示例事故树
inputs = {
    "Gas": False,
    "Oxygen": False,
    "Temperature": False
}
outputs = ["Fire"]
gates = [
    AndGate("Gas", "Oxygen", "Combustion"),
    AndGate("Temperature", "Combustion", "Fire")
]
tree = FaultTree(inputs, outputs, gates)

# 使用示例事故树进行分析
inputs["Gas"] = True
results = tree.evaluate(inputs)
print(results)
# 输出：{'Fire': False}

inputs["Oxygen"] = True
results = tree.evaluate(inputs)
print(results)
# 输出：{'Fire': False}

inputs["Temperature"] = True
results = tree.evaluate(inputs)
print(results)
# 输出：{'Fire': True}

此代码示例仅供参考，实际的事故树分析可能更加复杂，需要根据具体情况进行设计和实现。