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()
import java.text.DecimalFormat; public class FileTest { public static void main(String[] args) { DecimalFormat df = new DecimalFormat("#,##0.00"); System.out.println(df.format(12345.626)); System.out.println(df.format(123