#1、输入字符串 #2、逆序输出 #3、换行打印句子中的每个词 #4、统计字母种类数 #5、统计词汇种类数 -1 input a sentence(without punctuations) 2 print in reversed order 3 print the sentence with one word per line 4 count types of letters in the sentence 5 count types of words in

一个实现英文句子按单词逆序存放的函数，例如：This is an interesting programe. 逆序存放为.programe interesting an is This-A realization of English sentences in the word reverse storage function

程序是输入一串字符串，并且逆序输出，同时还会判断是否输入为空(The program is to input a string of characters, and output it in reverse direction, and at the same time, it will decide if the input is empty.)