1
2

fh=open("E:/Code/Python/python.txt","r")
date=fh.read()

1

date=fh.read()

1

line=fh.readline()

1

fh.close()

1
2
3
4

date="一起去学习"
fh2=open("E:/Code/Python/python2.txt","w")
fh2.write(date)
fh2.close()