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@@ -618,36 +618,34 @@ print('-----------')
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print(a)
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```
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### 22.字符串的操作题目
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全字母短句是包含所有英文字母的句子,比如:A QUICK BROWN FOX JUMPS OVER THE LAZY DOG.定义并实现一个方法GETMISSINGLETTERS,传入一个字符串采纳数,返回参数字符串变成一个PANGRAM中所缺失的字符。应该忽略传入字符串参数中的大小写,返回应该都是小写字符并按字母顺序排序(请忽略所有非ACSII字符)
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全字母短句 PANGRAM 是包含所有英文字母的句子,比如:A QUICK BROWN FOX JUMPS OVER THE LAZY DOG. 定义并实现一个方法 get_missing_letter, 传入一个字符串采纳数,返回参数字符串变成一个 PANGRAM 中所缺失的字符。应该忽略传入字符串参数中的大小写,返回应该都是小写字符并按字母顺序排序(请忽略所有非 ACSII 字符)
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**下面示例是用来解释,双引号不需要考虑:**
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(0)输入: A quick brown for jumps over the lazy dog
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(0)输入: "A quick brown for jumps over the lazy dog"
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返回: ""
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(1)输入:"A slow yellow fox crawls under the proactive dog"
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(1)输入:"A slow yellow fox crawls under the proactive dog"
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