Generally, there are the following punctuation marks that occupy case alone: comma, semicolon, colon, question mark, exclamation point, period, pause and so on. Punctuations that need to occupy double spaces are generally the following: dashes, ellipsis, quotation marks, book titles, brackets, etc. Except "?" ? -In these three cases, other punctuation marks (including? 》? " ? ) can't write the top grid. If you need punctuation marks other than the above three cells after writing the text in the last cell, squeeze them in the lower right corner of the word. ? In addition, dashes and ellipses need to occupy double spaces, but if they appear in the last one, they only need to occupy one space and cannot be divided into two parts.