Question

问题：我总共有50卢比，我购买3种产品，每种产品的价格都不同。当我购买产品时，我会写王子i-e Price_Remaining和Price_Consume。最终，当我同时计算两个列表时，我在一侧得到50，而在另一侧得到51？

实际上这是一个数学问题，但是我用C＃代码实现了这一点，而且我个人不知道为什么我一方面得到50，另一方面得到51？如果有人知道：与我分享。（谢谢）

所有问题的详细信息都在代码注释中给出。

namespace Fifty_And_FiftyOne_Problem
{
    class Program
    {
        static void Main(string[] args)
        {
            int TotalRupees = 50; // Rs.50/-
            int Sum_Of_totalConsume = 0;
            int Sum_Of_totalRemaining = 0;
            // Comsume.
            List<int> totalOfCosume = new List<int>();

            // Remaining.
            List<int> totalRemaining = new List<int>();

            // Product 1. Price = 20/-
            // Buyed Product 1. 
            // 50 - 20 = 30

            // After executing the below line : TotalRupees = 30
            TotalRupees = TotalRupees - 20;

            totalOfCosume.Add(20);
            totalRemaining.Add(30);

            // Product 2. Price = 15/-
            // Buyed Product 2.
            // 30 - 15 = 15.

            // After executing the below line : TotalRupees = 15.
            TotalRupees = TotalRupees - 15;

            totalOfCosume.Add(15);
            totalRemaining.Add(15);

            // Product 3. Price = 9/-
            // Buyed Product 3.
            // 15 - 9 = 6.

            //// After executing the below line : TotalRupees = 6.
            TotalRupees = TotalRupees - 9;

            totalOfCosume.Add(9);
            totalRemaining.Add(6);

            // Product 4. Price = 6/-
            // Buyed Product 3.
            // 6 - 6 = 0.

            //// After executing the below line : TotalRupees = 0.
            TotalRupees = TotalRupees - 6;

            totalOfCosume.Add(6);
            totalRemaining.Add(0);

            Console.WriteLine("Total Cosume :");
            foreach (var item in totalOfCosume)
            {
                Sum_Of_totalConsume = Sum_Of_totalConsume + item;
                Console.WriteLine(item);
            }
            Console.WriteLine("_____");
            Console.WriteLine(Sum_Of_totalConsume);


            Console.WriteLine();
            Console.WriteLine("Total Of Remaining :");
            foreach (var item in totalRemaining)
            {
                Sum_Of_totalRemaining = Sum_Of_totalRemaining + item;
                Console.WriteLine(item);
            }
            Console.WriteLine("_____");
            Console.WriteLine(Sum_Of_totalRemaining);

        }
    }
}

输出：

Answer 1

因为这是愚蠢的数学，它们并不意味着相等。

如果您要处理此问题，并从<?php $servername = "localhost"; $username = "root"; $password = "aaa"; $dbname = "test"; // Create connection $conn = new mysqli($servername, $username, $password, $dbname); // Check connection if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error); } $sql = "SELECT id, city, country FROM order_product"; $result = $conn->query($sql); $rows=array(); if ($result->num_rows > 0) { // output data of each row while($row = $result->fetch_assoc()) { $rows[]=$row; } } else { echo "0 results"; } echo json_encode($rows); $conn->close(); ?>中取1，直到您再也没有了

TotalRupees Total Consume: 50

希望这有帮助吗？

50/51问题出了什么问题？

1 个答案: