【发布时间】：2019-12-01 23:21:10
【问题描述】：
看了一些在线教程后，我一直在尝试使用数组编写队列算法，数组中的数字来自用户输入。当我运行程序时，删除选项似乎无法正常工作，因为我第一次运行删除选项时它总是说值为 0，但是当继续删除选项时它总是删除最后输入的值，而不是第一个。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace queue_test
{
class Program
{
static void Main(string[] args)
{
int max = 10;
int []a;//array
a = new int[max + 1];
int b; //user input
int front = 0;
int rear = 0;
int j = 0;
do
{
Console.WriteLine
("What do you want to do?");
Console.WriteLine();
Console.WriteLine("Add = 1");
Console.WriteLine("Delete = 2");
Console.WriteLine("Exit = 3");
Console.WriteLine();
b = int.Parse(Console.ReadLine());
Console.WriteLine();
if (b == 1)
{
Console.WriteLine("You selected to Add");
if (rear == max)
{
Console.WriteLine("The Queue is full");
}
else
Console.WriteLine("What value do you want to add?");
int v; //value
v = int.Parse(Console.ReadLine());
j++;
a[j] = v;
rear++;
}
else if (b == 2)
{
Console.WriteLine();
Console.WriteLine("You selected to Delete");
if (front == rear)
{
Console.WriteLine(" Queue is empty");
}
else
Console.WriteLine("The deleted value is:" + a[front++]);
}
else if (b == 3)
{
Console.WriteLine("Exit program");
Console.WriteLine();
Console.WriteLine("Press Enter to exit");
Console.ReadLine();
Environment.Exit(0);
}
else
{
Console.WriteLine("Enter a matching option");
Console.WriteLine();
}
} while (b != 'X') ;
}
}
}
【问题讨论】：
-
Using the free, built-in Step Debugger 调试代码比您想象的要容易。它还将帮助您更多地了解代码执行时会发生什么，并帮助您编写更好的代码。