[TOC] <br> ### subprocess 模塊 Python引入subprocess模塊來管理子進程，以取代一些舊模塊的方法：如 os.system、os.spawn*、os.popen*、popen2.*、commands.*不但可以調用外部的命令作為子進程，而且可以連接到子進程的input/output/error管道，獲取相關的返回信息。 #### subprocess.call(*popenargs, timeout=None, **kwargs) 執行命令，等待命令完成或超時，然后再返回狀態碼 ```cmd >>> subprocess.call("netstat -an | findstr 80",shell=True) TCP 192.168.0.106:60838 121.41.82.44:80 TIME_WAIT TCP 192.168.0.106:60839 121.41.82.44:80 TIME_WAIT UDP 127.0.0.1:58045 *:* UDP 127.0.0.1:58046 *:* 0 ``` #### subprocess.Popen(...) 在一個新進程中執行子程序，具體參數請查看源碼 ```cmd >>> netstat = subprocess.Popen("netstat -an | findstr 80", shell=True,stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE) >>> netstat <subprocess.Popen object at 0x000002965A2EE780> >>> netstat.stdout.read() b' TCP 192.168.0.106:60865 52.230.85.180:443 ESTABLISHED\r\n TCP 192.168.0.106:60943 140.207.124.210:80 LAST_ACK\r\n TCP 192.168.0.106:60950 121.41.82.44:80 TIME_WAIT\r\n TCP 192.168.0.106:60951 121.41.82.44:80 TIME_WAIT\r\n UDP 127.0.0.1:58045 *:* \r\n UDP 127.0.0.1:58046 *:* \r\n' >>> netstat.stderr.read() b'' >>> ``` <hr style="margin-top:100px"> :-:  ***微信掃一掃，關注“python測試開發圈”，了解更多測試教程！***