文件操作

Posted 2020-11-09 FBYi

fr = open (\'win.txt\',mode=\'r\',encoding=\'utf-8\')
win=fr.read()
print(\'明文:\'+ win)
print(\'密文:\',end=\'\')
for c in win:
    print(chr(ord(c)+3),end=\'\')

fw = open(\'bili.txt\',mode =\'a\',encoding=\'utf-8\')
for c in win:
    print(chr(ord(c)+3,),end=\'\')
    fw.write(chr(ord(c)+3))

fr.close()
fw.close()

name1 = \'phone\'
name2 = \'ball\'
superman = [\'strong\',\'handsome\',\'tall\',\'humorous\']

print(superman[0])
print(superman[-2])
print(len(superman),superman)

superman.append(\'bay\')
superman.insert(1,\'jack\')

superman.pop(0)
superman.pop(-1)

superman[0]=\'pig\'