确定列表中的单词是否以元音开头[关闭]答案

【问题标题】：Identify if a word in a list starts with a vowel [closed]确定列表中的单词是否以元音开头[关闭]
【发布时间】：2021-10-11 01:55:06
【问题描述】：

我需要确定这些单词是否以元音开头。

year= ["january","february","march","april","may","june","july","august","september","october","november","december"]
vowels = "aeiou"

for month in range(len(year)):
    if month.startswith(vowels):
         if_vowel = "Yes"
    else:
         if_vowel = "No"
print("Does the month of {0} start with a vowel? {1}".format(year[i],if_vowel)

理想情况下，它会根据月份是否以元音开头打印是或否

【问题讨论】：

没有一个月份名称以“aeiouy”开头（这是您最初测试的）。
这能回答你的问题吗？ checking if the first letter of a word is a vowel
嗨！请不要忘记在您的帖子中包含一个实际问题！我不清楚您实际上遇到了这个问题的哪一部分。解释器是否抛出异常（您没有预料到）？请包括那个！它是否返回了意外的输出？请包括显示的内容和您想要的内容！

标签： python for-loop if-statement

【解决方案1】：

for month in year:
    print(f"Does the month of {month} start with a vowel? {'Yes' if month[0] == 'e' else 'No'}")

您可以使用 Python3 的 f-String 来简化格式化。然后，在 f-String 中，您可以使用条件表达式，例如如果月份的第一个字母是“e”则返回“Yes”，否则返回“No”。

【讨论】：

【解决方案2】：

如果你迭代 year 而不是 indecies range(len(year)) 会更容易。然后你可以检查第一个字符month[0]是否是month[0] in vowels的值。

year= ["january","february","march","april","may","june","july","august","september","october","november","december"]
vowels = "aeiouy"

for month in year:
    if month[0] in vowels:
         if_vowel = "Yes"
    else:
         if_vowel = "No"
    
    print("Does the month of {0} start with a vowel? {1}".format(month,if_vowel))

【讨论】：

【解决方案3】：

您必须检查月份名称中的第一个字母是否以元音开头。或不。迭代索引将帮助您获得预期的输出。 'y' 不是元音。所以更新了你的代码。

year= ["january","february","march","april","may","june","july","august","september","october","november","december"]
vowels = "aeiou"

for i in range(len(year)):
    if year[i][0] in vowels:
         if_vowel = "Yes"
    else:
         if_vowel = "No"
    print("Does the month of {0} start with a vowel? {1}".format(year[i],if_vowel))

输出：

Does the month of january start with a vowel? No
Does the month of february start with a vowel? No
Does the month of march start with a vowel? No
Does the month of april start with a vowel? Yes
Does the month of may start with a vowel? No
Does the month of june start with a vowel? No
Does the month of july start with a vowel? No
Does the month of august start with a vowel? Yes
Does the month of september start with a vowel? No
Does the month of october start with a vowel? Yes
Does the month of november start with a vowel? No
Does the month of december start with a vowel? No

【讨论】：

【解决方案4】：

year = ["january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november",
        "december"]
vowels = ("a", "o", "e", "i", "u", "y")

for month in year:
    if month.startswith(vowels):
        if_vowel = "Yes"
    else:
        if_vowel = "No"
    print("Does the month of {0} start with a vowel? {1}".format(month, if_vowel))

【讨论】：

【解决方案5】：

year = ["january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november",
        "december"]
vowels = ("a", "o", "e", "i", "u", "y")

for month in year:
    if month[0] in vowels:
        if_vowel = "Yes"
    else:
        if_vowel = "No"
    print("Does the month of {0} start with a vowel? {1}".format(month, if_vowel))

【讨论】：