找到一行中的单词，即特定字母的开头和同一字母的单词的结尾

def find_words_with_same_start_end_letter(line, letter):
    words = line.split()  # 拆分成单词
    result = []
    
    for word in words:
        if word[0].lower() == letter.lower() and word[-1].lower() == letter.lower():
            result.append(word)
    
    return result

# 示例用法
line = "This is a test line for finding words with same start and end letter"
letter = "t"
words = find_words_with_same_start_end_letter(line, letter)
print(words)

['test']