1#@!#!123s

: / usr / local / src / Python-3.9.9 / Lib / test / test_asyncio /

Filename : echo2.py

back

import os

if __name__ == '__main__':
    buf = os.read(0, 1024)
    os.write(1, b'OUT:'+buf)
    os.write(2, b'ERR:'+buf)