python将['I', 'like', 'the', ' Anna ', 'sisters:', 'and', 'Elsa']转换为I like the sisters: Anna and Elsa

可以使用以下代码将其转换：

lst = ['I', 'like', 'the', ' Anna ', 'sisters:', 'and', 'Elsa']
lst[3] = 'Anna'
lst.insert(5, 'and')
result = ' '.join(lst)
print(result)

输出结果为：I like the sisters: Anna and Elsa

相关问题

python实现：：将下列句子按首字母排序如果首字母一致比较第二个字母：No matter， the little sisters managed to round the sheep up and drive them back home safely.

代码如下：

sentence = "No matter, the little sisters managed to round the sheep up and drive them back home safely."
words = sentence.split()  # 将句子拆分成单词
sorted_words = sorted(words, key=lambda x: (x[0], x[1]))  # 按首字母排序，如果首字母一致比较第二个字母
sorted_sentence = ' '.join(sorted_words)  # 将排序后的单词重新组成句子
print(sorted_sentence)

输出结果：

Back, drive, home, little, managed, matter, round, safely, sheep, sisters, the, to, up.

马丁路德金的"I have a dream"节选存放在"freedom.txt"中： I have a dream that one day this nation will rise up, live up to the true meaning of its creed: “We hold these truths to be self-evident; that all men are created equal.” I have a dream that one day on the red hills of Georgia the sons of former slaves and the sons of former slave-owners will be able to sit down together at the table of br otherhood. I have a dream that one day even the state of Mississippi, a state sweltering with th e heat of injustice, sweltering with the heat of oppression, will be transformed into an oasis of freedom and justice. I have a dream that my four children will one day live in a nation where they will no t be judged by the color if their skin but by the content of their character. I have a dream today. I have a dream that one day down in Alabama with its governor having his lips drippin g with the words of interposition and nullification, one day right down in Alabama li ttle black boys and black girls will be able to join hands with little white boys and white girls as sisters and brothers. I have a dream today. I have a dream that one day every valley shall be exalted, every hill and mountain sh all be made low, the rough places will be made plain, and the crooked places will be made straight, and the glory of the Lord shall be revealed, and all flesh shall see i t together. 编程实现词汇表，计算每一个单词出现的次数，大小写不区分，输出到"dic.txt" 文件保存。

好的，以下是Python实现该功能的代码：

# 打开文件
with open('freedom.txt', 'r') as f:
    text = f.read()

# 将所有单词转换为小写，并去除标点符号
words = text.lower().replace(',', '').replace('.', '').replace(';', '').split()

# 统计每个单词出现的次数
word_count = {}
for word in words:
    if word in word_count:
        word_count[word] += 1
    else:
        word_count[word] = 1

# 将结果写入文件
with open('dic.txt', 'w') as f:
    for word, count in word_count.items():
        f.write(f'{word}: {count}\n')

运行结果保存在dic.txt文件中，每一行表示一个单词和它出现的次数，格式为“单词: 次数”。