precise math function Time Limit : 3000/1000ms (Java/Other) Memory Limit : 65535/32768K (Java/Other) Total Submission(s) : 2 Accepted Submission(s) : 2 Font: Times New Roman | Verdana | Georgia Font Size: ←→ Problem Description 喜爱ACM的PBY同学遇到了一道数学
前言 为了获得一堆apk的大小,并与人类友好方式显示.本来是打算用以下方法,到时不能具体到保留两位小数. org.apache.commons.io.FileUtils.byteCountToDisplaySize(f.length()); Returns a human-readable version of the file size, where the input represents a specific number of bytes. If the size is over 1GB
转自https://blog.csdn.net/qiji2011/article/details/81270552 1.js: //保留2位小数,如:2,会在2后面补上00.即2.00 function toDecimal2(x) { var f = parseFloat(x); if (isNaN(f)) { return false; } var f = Math.round(x * 100) / 100; var s = f.toString()