以行为单位对行中以空格或标点符号为分隔的所有单词进行倒排，同时去 除标点符号，之后把已处理的字符串(应不含标点符号)仍按行重新存入字符串数组xx中-Units to act in line separated by spaces or punctuation for all the words to inverted, at the same time to remove punctuation marks, followed by the string have been processe