进程间实时通信的方法

 

进程间实时通信的方法

2011年1月18日

17:07

哦，学习了， "communicate()是要等__程退出才返回" 

 

I was blind but now I can see.

 

  

 

Popen.communicate(input=None)¶

  Interact with process: Send data to stdin. Read data from stdout and stderr, until end-of-file is reached. Wait for process to terminate. The optional input argument should be a string to be sent to the child process, or None, if no data should be sent to the child.

 

 

 

 

试了一下，也行

Python code

 

 

 

import subprocess

 

def main():

process1 = subprocess.Popen("python  -u sub.py", shell=False, stdout = subprocess.PIPE, stderr=subprocess.STDOUT)       

#print process1.communicate()[0]

 

while True:

line = process1.stdout.readline()

if not line:

break

print line

 

if __name__ == \'__main__\':

main()

 

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