python脚本执行CMD命令并返回结果的例子

import os

os.system('adb)

if __name__=='__main__':
 import os 
 a = os.popen('adb')
 #此时打开的a是一个对象，如果直接打印的话是对象内存地址
 
 text = a.read()
 #要用read（）方法读取后才是文本对象
 
 print(text)
 
 a.close()#打印后还需将对象关闭
 
 #下面执行adb devices同理
 b = os.popen('adb devices')
 text2 = b.read()
 print(text2)
 b.close()

#adb返回的结果：
 
Android Debug Bridge version 1.0.40
Version 4986621
Installed as D:\androidsdk\platform-tools\adb.exe
 
global options:
 -a   listen on all network interfaces, not just localhost
 -d   use USB device (error if multiple devices connected)
 -e   use TCP/IP device (error if multiple TCP/IP devices available)
 -s SERIAL use device with given serial (overrides $ANDROID_SERIAL)
 -t ID  use device with given transport id
 -H   name of adb server host [default=localhost]
 -P   port of adb server [default=5037]
 -L SOCKET listen on given socket for adb server [default=tcp:localhost:5037]
 
general commands:
 devices [-l]    list connected devices (-l for long output)
 help      show this help message
 version     show version num
 
 
#adb devices 返回的结果：
List of devices attached
740dc3d1 device

# coding:utf-8
import os
 
# popen返回文件对象，跟open操作一样
with os.popen(r'adb devices', 'r') as f:
 text = f.read()
print(text) # 打印cmd输出结果
 
# 输出结果字符串处理
s = text.split("\n") # 切割换行
result = [x for x in s if x != ''] # 列生成式去掉空
print(result)
 
# 可能有多个手机设备
devices = [] # 获取设备名称
for i in result:
 dev = i .split("\tdevice")
 if len(dev) >= 2:
  devices.append(dev[0])
 
if not devices:
 print('当前设备未连接上')
else:
 print('当前连接设备：%s' % devices)