二十五岁时我们都一样愚蠢、多愁善感,喜欢故弄玄虚,可如果不那样的话,五十岁时也就不会如此明智。
标题:Python3 os 模块 Dup 方法
Python3 os 模块 Dup 方法
#!/usr/bin/python3 import os, sys # Open a file fd = os.open( "foo.txt", os.O_RDWR|os.O_CREAT ) # Get one duplicate file descriptor d_fd = os.dup( fd ) # Write one string using duplicate fd line = "this is test" # string needs to be converted byte object b = str.encode(line) os.write(d_fd, b) # Close a single opened file os.closerange( fd, d_fd) print ("Closed all the files successfully!!")