#!/usr/bin/env python
# coding=utf-8
import os
print (os.getcwd())
os.chdir("/home/zh/Download/")
print (os.getcwd())
hander=open(".vimrc")
vimrc=hander.readlines()
a=['fj','woi','cao','wpn']
a[2:4]=['fjifij']
a[1]="jfi"
os.chdir("/")
print(os.path.abspath('.'))
print (os.getgid())
