第一种方法: System.Drawing.Printing.PageSettings set_print_page = new System.Drawing.Printing.PageSettings(); DevExpress.XtraPrinting.DynamicPrintHelper ph = new DevExpress.XtraPrinting.DynamicPrintHelper(); if (ph.IsPr
import java.math.BigDecimal; import java.text.DecimalFormat; import java.text.NumberFormat; public class format { double f = 111231.5585; public void m1() { BigDecimal bg = new BigDecimal(f); , BigDecimal.ROUND_HALF_UP).doubleValue(); System.out.prin
1 , Use locate command It is a fast way to find the files location, but if a file just created ,it will can not found use it. You may need run updatedb to update the database 2, Use find command "find" will search on your disk not from the datab
1. [命令]:cat [功能说明]: concatenate files and print on the standard output #连接文件并打印到标准输出,有标准输出的都可以用重定向定向导入到文件里面 [语法格式]: cat [OPTION]...[FILE]... [选项参数]: 参数 说明 简解 -b,--number-nonblank number nonempty output lines 非空输出行编号 -n,--number number all outputnline
4种方法,都是四舍五入,例: import java.math.BigDecimal; import java.text.DecimalFormat; import java.text.NumberFormat; public class format { double f = 111231.5585; public void m1() { BigDecimal bg = new BigDecimal(f); double f1 = bg.setScale(2, BigDecimal.ROUND
Java中: import java.math.BigDecimal; import java.text.DecimalFormat; import java.text.NumberFormat; public class format { double f = 111231.5585; public void m1() { BigDecimal bg = new BigDecimal(f); double f1 = bg.setScale(2, BigDecimal.ROUND_HALF_UP
import java.math.BigDecimal; import java.text.DecimalFormat; import java.text.NumberFormat; public class format { double f = 111231.5585; public void m1() { BigDecimal bg = new BigDecimal(f); double f1 = bg.setScale(2, BigDecimal.ROUND_HALF_UP).doubl