Question

编写Python程序以从用户读取句子，并在进行以下更改后再次打印该句子：

将所有a和A转换为@
将s和S转换为$
将o和O转换为0
将g和G转换为8
将i和I转换为!

这是我的代码：

#user inputs a sentence
iSent=(input("Enter a sentence that you want to convert the letters of:"))

#Process of converting the letters
print(iSent.replace("s","$"))
print(iSent.replace("S","$"))
print(iSent.replace("o","0"))
print(iSent.replace("O","0"))
print(iSent.replace("g","8"))
print(iSent.replace("G","8"))
print(iSent.replace("i","!"))
print(iSent.replace("I","!"))

这是我的结果：

Enter a sentence that you want to convert the letters of:
Summer season is a great season
Summer $ea$on i$ a great $ea$on    
$ummer season is a great season    
Summer seas0n is a great seas0n    
Summer season is a great season    
Summer season is a 8reat season    
Summer season is a great season    
Summer season !s a great season    
Summer season is a great season

如何编写此代码以一种方式将字母转换为1行而不是多行？

Answer 1

您可以使用词典来存储要用其替换字母的符号（由于用相同的符号替换了大写和小写字母，因此只需要存储大写或小写的值）：

letters_to_symbols = {
    'S': '$',
    'O': '0',
    'G': '8',
    'I': '!'
  }

然后循环浏览字典：

isEnt = input('enter your sentence here:\n')

for letter, symbol in letters_to_symbols.items():
    isEnt = isEnt.replace(letter, symbol)
    isEnt = isEnt.replace(letter.lower(), symbol)

print(isEnt)

结果是：

enter your sentence here:
>>> Summer season is a great season

$ummer $ea$0n !$ a 8reat $ea$0n

Answer 2

您可以使用str.translate：

>>> src = "asogi"
>>> tgt = "@$08!"
>>> text = "Summer season is a great season"
>>> text.translate(str.maketrans(src + src.upper(), tgt*2))
'$ummer $e@$0n !$ @ 8re@t $e@$0n'

这将用相应的字符替换'asogiASOGI'中的字符。 '@$08!@$08!'中的字符。

相反，如果您想一次只替换一个字符，但要减少行数，请使用zip和一个循环（与问题中的输出相同）：

for s, t in zip(src+src.upper(), tgt*2):
    print(text.replace(s, t))

将字母转换为数字和符号

2 个答案: