帮我用用python写一段模拟iic的代码

以下是使用Python模拟I2C通信的示例代码：

import time

# 模拟I2C设备
class I2CDevice:
    def __init__(self, address):
        self.address = address

    # 发送数据
    def send(self, data):
        print("Send data:", data)

    # 接收数据
    def receive(self, count):
        print("Receive data:", count)

# 模拟I2C总线
class I2CBus:
    def __init__(self):
        self.devices = []

    # 添加设备
    def add_device(self, device):
        self.devices.append(device)

    # 发送数据
    def send(self, address, data):
        for device in self.devices:
            if device.address == address:
                device.send(data)
                return

    # 接收数据
    def receive(self, address, count):
        for device in self.devices:
            if device.address == address:
                device.receive(count)
                return

# 创建I2C设备和总线
device = I2CDevice(0x27)
bus = I2CBus()
bus.add_device(device)

# 发送数据
bus.send(0x27, [0x01, 0x02, 0x03])

# 接收数据
bus.receive(0x27, 4)

以上代码模拟了一个I2C设备和总线，可以发送和接收数据。在实际应用中，需要根据具体的I2C设备和应用场景进行修改。