在 Python 中计算和显示字符串中的元音
假设给定一个字符字符串,让我们分析一下其中哪些字符是元音。
使用集合
我们首先找出所有单独而独特的字符,然后测试它们是否存在于表示元音的字符串中。
示例
stringA = "Tutorialspoint is best" print("Given String: \n",stringA) vowels = "AaEeIiOoUu" # Get vowels res = set([each for each in stringA if each in vowels]) print("The vlowels present in the string:\n ",res)
输出
运行上述代码会产生以下结果 -
Given String: Tutorialspoint is best The vlowels present in the string: {'e', 'i', 'a', 'o', 'u'}
使用 fromkeys
此函数通过将字符串视为字典来提取元音。
示例
stringA = "Tutorialspoint is best" #ignore cases stringA = stringA.casefold() vowels = "aeiou" def vowel_count(string, vowels): # Take dictionary key as a vowel count = {}.fromkeys(vowels, 0) # To count the vowels for v in string: if v in count: # Increasing count for each occurence count[v] += 1 return count print("Given String: \n", stringA) print ("The count of vlowels in the string:\n ",vowel_count(stringA, vowels))
输出
运行上述代码会产生以下结果 -
Given String: tutorialspoint is best The count of vlowels in the string: {'a': 1, 'e': 1, 'i': 3, 'o': 2, 'u': 1}
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