#python计算结果百位500向下取整，（0-499取000，500-999取500)

!/usr/bin/env python

coding:utf-8

计算结果百位500向下取整，（0-499取000，500-999取500)

import math

calc_Amount = float(input("输入所有可需金额："))

act_Amount = calc_Amount
if calc_Amount > 0:
value2 = calc_Amount / 1000
value3 = math.floor(value2)
if (value2 - value3) < 0.5 and (value2 - value3) >= 0:
result = value31000
else:
result = (value3+0.5)1000
print(result)
else:
print(str(calc_Amount)+"数字有问题")

Java编写

package org.learn.JavaLearn;
import java.lang.Math;
public class CalcBTXYApp {

public static void main(String[] agrs){

// calc500round(11999.00);
// thirdjinwei(111.0922);
// applyrepayeach(5000,0.007,3);
CalcBTXYApp calcBTXYApp =new CalcBTXYApp();
System.out.println(calcBTXYApp.applyrepayeach(5000,0.007,3));
}

public  double applyrepayeach(double applyAmount,double fee,int qishu){
    double Amount =applyAmount;
    double repayeach;
    repayeach = thirdjinwei(Amount/qishu) + thirdjinwei(Amount*fee);

// System.out.println("借款申请页每月应还:"+repayeach);
return repayeach;
}

public  double newRepayeach(double creditAmount,double baoxianfee,double fee,int qishu){

 double rebaoxian ;
 double newLoanAmount;
 double newbaoxian;
 double Amount;
 double nowrepayeach;
    rebaoxian =Math.floor(creditAmount*baoxianfee);
    newLoanAmount = calc500round(creditAmount-rebaoxian);
    newbaoxian = Math.floor(newLoanAmount*baoxianfee);
    Amount = newLoanAmount+newbaoxian;
    nowrepayeach =thirdjinwei(thirdjinwei(Amount/qishu)+thirdjinwei(Amount*fee));

// return Amount;
return nowrepayeach;
}

public  double thirdjinwei(double amount){
    amount = amount*1000;
    amount = Math.floor(amount);
    amount = amount/10;
    amount = Math.ceil(amount);
    amount = amount/100;

// System.out.println(amount);
return amount;

}
public  double calc500round(double calc_Amount){
    double act_Amount;
    double value2;
    double value3;
    double result=0;
    act_Amount = calc_Amount;
    if (calc_Amount>0){
        value2 = calc_Amount/1000;
        value3 = Math.floor(value2);
        if ((value2-value3)<0.5 &&(value2-value3)>=0){
            result = value3*1000;
        }else {
            result = (value3+0.5)*1000;
        }

// System.out.println(result);
//return result;
}else {
System.out.println(calc_Amount+"金额数字有问题");
}
return result;
}

}