Question

无论何时插入闪存驱动器，我都能够检测到。但是，（听起来很傻）无法检测是否插入了多个USB。此外，我很难编写代码来读取它的数据（他们）。有人可以帮忙吗？提前致谢 :) 附：我的系统是Windows 8 64位整个过程就是检测我将从传感器中拾取的信号。

这是检测USB的代码

import string  
from ctypes import windll  
import time  
import os  
def get_drives():  
    drives = []  
    bitmask = windll.kernel32.GetLogicalDrives()  
    for letter in string.uppercase:  
        if bitmask & 1:  
            drives.append(letter)  
        bitmask >>= 1  
    return drives  
if __name__ == '__main__':  
    before = set(get_drives())  
    pause = raw_input("Please insert the USB device, then press ENTER")  
    print ('Please wait...')  
    time.sleep(5)  
    after = set(get_drives())  
    drives = after - before  
    delta = len(drives)  
    if (delta):  
        for drive in drives:  
            if os.system("cd " + drive + ":") == 0:  
                newly_mounted = drive  
                print "There were %d drives added: %s. Newly mounted drive letter is   %s" %   (delta, drives, newly_mounted)  
    else:  
        print "Sorry, I couldn't find any newly mounted drives."

Answer 1

我在我的电脑上尝试了你的代码。它工作得很好。我的系统是win7 64bit pro。

如何使用python检测多个USB端口并从USB读取数据

1 个答案: