#!/usr/bin/python3.8

# ļ
testFile= open("d:/test.txt", "r+")
print ("ļΪ", testFile.name)

line = testFile.readline()
print ("ȡΪ%s" % (line))

# ļȡָ뵽ͷ
fo.seek(0, 0)
line = testFile.readline()
print ("ȡΪ%s" % (line))


# رļ
testFile.close()
ϳнΪ
ļΪd:/foo.txt
ȡΪ2:www.nfu.edu.cn 2: www.nfu.edu.cn
ȡΪ2:www.nfu.edu.cn 2: www.nfu.edu.cn