Question

Id非常感谢我遇到的问题的帮助。

我有一个与树莓派3B连接的温度传感器。要使用传感器，用户需要在命令提示符下输入I2C地址和轮询频率。我想自动化这些I2C地址和轮询时间的输入。这段代码是由传感器供应商提供的，而不是我写的（完全是python初学者！）

while True:
        input = raw_input("Enter command: ")

        if input.upper().startswith("LIST_ADDR"):
            devices = device.list_i2c_devices()
            for i in range(len (devices)):
                print devices[i]

        # address command lets you change which address the Raspberry Pi will poll
        elif input.upper().startswith("ADDRESS"):
            addr = int(string.split(input, ',')[1])
            device.set_i2c_address(addr)
            print("I2C address set to " + str(addr))

        # continuous polling command automatically polls the board
        elif input.upper().startswith("POLL"):
            delaytime = float(string.split(input, ',')[1])

            # check for polling time being too short, change it to the minimum timeout if too short
            if delaytime < AtlasI2C.long_timeout:
                print("Polling time is shorter than timeout, setting polling time to %0.2f" % AtlasI2C.long_timeout)
                delaytime = AtlasI2C.long_timeout

            # get the information of the board you're polling
            info = string.split(device.query("I"), ",")[1]
            print("Polling %s sensor every %0.2f seconds, press ctrl-c to stop polling" % (info, delaytime))

这是我要自动执行的命令提示符文本：

感谢您的帮助！

Answer 1

我是Python的新手，但我立即发现了问题之一：您的if语句包含.upper()而不是.isupper，因此请对其进行更改。在这里：

# These are the bits to change, I am sorry if there were any other errors I couldn't point out
if input.isupper().startswith("LIST_ADDR"):
elif input.isupper().startswith("ADDRESS"):
elif input.isupper().startswith("POLL"):

自动输入命令提示符

1 个答案: