在担任教师讲课比赛与论文评奖的评委时,笔者发现许多老师还没有掌握书面表达中层次序号的规范写法,无论是PPT上展示的文稿还是写作的论文,其层次序号或者无法匹配(如“1”“2”“3”……后面加顿号“、”),或者使用错位(如不用“一、”“二、”“三、”而直接使用“(一)”“(二)”“(三)”),或者格式有误(如层次序号前面是否空2个字格),或者体例杂糅 When I was a judge for teaching lectures and essay awards, I found that many teachers have not yet mastered the normative way of writing the mid-level serial number. Whether it is a presentation or a paper written on the PPT, the serial numbers of them can not match (for example, “”), Or use the mismatch (such as “” “ And directly use ”“ (a) ”“ (b) ”“ (c) ”), or the format is wrong (such as the level number is empty in front of two characters), or mix