问题：这个数是我用73.54100之后获得的，但是只是少部分的小数会遇到精度缺失情况，希望以后统一做一下精度缺失判断。解决方案：javascriptMath.round(myvalue100)/100简单粗暴...

SQL经典习题解答（6）23、统计各科成绩各分数段人数：课程编号,课程名称,\10085\,\8570\,\7060\,\060\及所占百分比SELECTt1.,t2.all_num,CONCAT(ROUND(t1.num/t2.all_num

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最近7天内每天(某个)表空间的增长量colTS_NAMEfora15SELECTa.snap_id,a.rtime,c.tablespace_namets_name,round(a.tablespace_sizec.block_size/1024/1024/1024,

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D. DistinctCharactersQueriesDescriptionYouaregivenastring ss consistingoflowercaseLatinlettersand qq queriesforthisstri

原题面：https://codeforces.com/contest/1283(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fcodeforces.com%2Fcontest%2F1283)A.MinutesBeforetheNewYear题目大意：给定时间，问距离零点

A.EvenButNotEven(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fcodeforces.com%2Fcontest%2F1291%2Fproblem%2FA)题意：给你一个很长的数，可以删减里面的任意数字，要求本身不能除以2，但是该数的各位和能除以2，输出任意符合