Python知识3 文件操作【多测师】

Python课堂   第四节课
import os
file_name=input('enter file name:')
fobj = open(file_name,'a')
while True:
aline=input("enter a line('.' to quit ):")
if aline !='.':
fobj.write('%s%s'%(aline,os.linesep))
else:
break
fobj.close()

fobj = open(r'C:\Users\Administrator.PC-20170627ZTZF\Desktop\ggg.txt')
line = fobj.readlines()
print(line)

根据文件名称读取文件里面的内容：
filename=input('enter file name:')
f = open(r'C:\Users\Administrator.PC-20170627ZTZF\Desktop\ggg.txt')
allLines=f.readlines()
f.close()
for eachLine in allLines:
print(eachLine)