实数是科学计数法表示的数据，你拆看看是看不出来什么的。

计组：浮点数的存储方式_不依法度的博客-CSDN博客 https://blog.csdn.net/weixin_50816938/article/details/120337272?utm_medium=distribute.pc_aggpage_search_result.none-task-blog-2~aggregatepage~first_rank_ecpm_v1~rank_v31_ecpm-3-120337272-null-null.pc_agg_new_rank&utm_term=plc%E4%B8%AD%E6%B5%AE%E7%82%B9%E6%95%B0%E7%9A%84%E6%95%B0%E6%8D%AE%E5%AD%98%E5%82%A8%E6%A0%BC%E5%BC%8F&spm=1000.2123.3001.4430