我必须编写一个程序来反转文件中单词的字母.
例如,如果文件包含以下单词:
snow tree star wreath
它会将它们变成:
wons eert rats htaerw
完成后,我必须编写一个新文件,它将以相反的顺序写入它们,如下所示:
htaerw rats eert wons
这是我的代码:
def reverse(string): #empty list for string word = [] #for each letter in the string obtain the corresponding opposite number #first letter to last letter, second letter to second last letter, etc... for letter in range(len(string)-1, -1, -1): word.append(string[letter]) #create main() function def main(): #open file and read words in each line input_file = open("words.txt", "r") word_file = input_file.readlines() #empty list for the words in the file, after their letters have been reversed reversed_list = [] for word in range(len(word_file)): reverse_word = reverse(word_file[word]) reversed_list.append(reverse_word) #create new file of the reversed words IN REVERSED ORDER! reverse_file = open("reverse.txt","w") reverse_file.writelines(reversed_list) reverse_file.close() main()
如何在不使用内置.reverse()函数的情况下编辑主函数以反转单词的顺序?