《文件操作-open》

#!/usr/bin/env python
# -*- coding:utf-8 -*-

file="/usr/local/test"
       
alist = ["hello\n","python\n"]
generator = ("{}\t{}\n".format(i,i+1) for i in range(9)) 

#写入文件       
with open(file,"w") as fd_out:
    fd_out.writelines(alist)
    fd_out.writelines(generator)
#读文件   
with open(file,"r") as fd_in:
    for line in fd_in:
        print(line.strip())