使用Python列表推导式条件拼接不规则字符串时如何处理Jr姓名后缀

实现方案 #

采用指针动态遍历的方式替换固定步长的列表推导，每轮遍历前先判断是否遇到带Jr后缀的姓名，再调整截取长度：

代码实现 #

words = ['QB', 'Teddy', 'Bridgewater','RB', 'Dalvin', 'Cook', 'WR', 'Keenan', 'Allen', 'TE', 'Dalton', 'Schultz', 'WR', 'Odell', 'Beckham', 'Jr']
result = []
index = 0
words_length = len(words)

while index < words_length:
    # 判定当前条目是否带Jr后缀：当前索引+3位置存在且值为Jr
    if index + 3 < words_length and words[index + 3] == 'Jr':
        current_span = 4
    else:
        current_span = 3
    result.append(' '.join(words[index:index + current_span]))
    index += current_span

输出结果 #

['QB Teddy Bridgewater', 'RB Dalvin Cook', 'WR Keenan Allen', 'TE Dalton Schultz', 'WR Odell Beckham Jr']

内容的提问来源于stack exchange，提问作者Sedric Hibler