Python -如何在字符串中查找单词，然后仅打印x个字母

def print_letters_in_words(word_list, letter, num_letters):
    for word in word_list:
        if word.startswith(letter):
            print(word[:num_letters])

# 示例调用
sentence = "How to find words in a string and print only x letters"
words = sentence.split()
target_letter = "p"
num_letters = 2
print_letters_in_words(words, target_letter, num_letters)