Question

是否可以比较两个循环的总值？

class Program
{
    static void Main(string[] args)
    {
        int Op1_days = 0, Op1_salary = 0, Op2_days = 0, Op2_salary = 1, Op1_total = 0, Op2_total = 1;
        Console.WriteLine("Option 1");
        DisplayOption1(Op1_days, Op1_salary, Op1_total);

        Console.WriteLine("\nOption 2");
        DisplayOption2(Op2_days, Op2_salary, Op2_total);
        {
            Console.Write(Enter the option 1 total salary
    }
    static void DisplayOption1(int Op1_days, int Op1_salary, int Op1_total)
    {
        Console.WriteLine("Days   Salary");
        for (Op1_days = 1; Op1_days < 11; Op1_days++)
        {
            Op1_salary = Op1_salary + 100;
            Console.WriteLine("{0}      {1}", Op1_days, Op1_salary);
            Op1_total = (Op1_total + Op1_salary);
        }
        Console.WriteLine("Total of option 1 salary is = {0} ", Op1_total);
    }
    static void DisplayOption2(int Op2_days, int Op2_salary, int Op2_total)
    {
        Console.WriteLine("Days   Salary");
        Console.WriteLine("1      1");
        for (Op2_days = 2; Op2_days < 11; Op2_days++)
        {
            Op2_salary = Op2_salary * 2;
            Console.WriteLine("{0}      {1}", Op2_days, Op2_salary);
            Op2_total = (Op2_total + Op2_salary);
        }
        Console.WriteLine("Total of option 2 salary is = {0} ", Op2_total);
    }
}

我可以得到总数，但我只是无法比较它们，它只是比较循环的第一个值

Answer 1

我建议重构代码，以便函数返回结果总数，然后直接比较主函数中的结果。这样的事情应该有效：

static void Main(string[] args)
{
    int Op1_days = 0, Op1_salary = 0, Op2_days = 0, Op2_salary = 1;
    Console.WriteLine("Option 1");
    int Op1_total = DisplayOption1(Op1_days, Op1_salary, Op1_total);

    Console.WriteLine("\nOption 2");
    int Op2_total = DisplayOption2(Op2_days, Op2_salary, Op2_total);

    if (Op1_total == Op2_total)
    {
        Console.Write("The two salaries are equal");
    }
}

static int DisplayOption1(int Op1_days, int Op1_salary)
{
    int Op1_total = 0;
    Console.WriteLine("Days   Salary");
    for (Op1_days = 1; Op1_days < 11; Op1_days++)
    {
        Op1_salary = Op1_salary + 100;
        Console.WriteLine("{0}      {1}", Op1_days, Op1_salary);
        Op1_total = (Op1_total + Op1_salary);
    }
    Console.WriteLine("Total of option 1 salary is = {0} ", Op1_total);
    return Op1_total;
}
static void DisplayOption2(int Op2_days, int Op2_salary)
{
    int Op2_total = 0;
    Console.WriteLine("Days   Salary");
    Console.WriteLine("1      1");
    for (Op2_days = 2; Op2_days < 11; Op2_days++)
    {
        Op2_salary = Op2_salary * 2;
        Console.WriteLine("{0}      {1}", Op2_days, Op2_salary);
        Op2_total = (Op2_total + Op2_salary);
    }
    Console.WriteLine("Total of option 2 salary is = {0} ", Op2_total);
    return Op2_total;
}

Answer 2

此问题是您传递的总值为“按值”。这意味着int的初始值被传递到函数中，但是任何更改都不会应用于原始int（这就是为什么当你进行比较时得到初始值。）你可以通过两种方式解决这个问题。。您可以执行p.s.w.g所做的操作并返回值，或者您可以告诉您的参数“通过引用”传递。在这种情况下，值与传入的初始变量相关联，因此可以在函数调用之外看到更改。要在C＃中执行此操作，只需在方法签名中的参数（在其中定义）和方法调用（在其中调用它）之前添加“ref”关键字，如下所示：

static void Main(string[] args)
    {
        int Op1_days = 0, Op1_salary = 0, Op2_days = 0, Op2_salary = 1, Op1_total = 0, Op2_total = 1;
        Console.WriteLine("Option 1");
        DisplayOption1(Op1_days, Op1_salary, ref Op1_total);

        Console.WriteLine("\nOption 2");
        DisplayOption2(Op2_days, Op2_salary, ref Op2_total);

        Console.WriteLine("{0} Compared to {1}",Op1_total,Op2_total);
        Console.ReadLine();
    }
    static void DisplayOption1(int Op1_days, int Op1_salary, ref int Op1_total)
    {
        Console.WriteLine("Days   Salary");
        for (Op1_days = 1; Op1_days < 11; Op1_days++)
        {
            Op1_salary = Op1_salary + 100;
            Console.WriteLine("{0}      {1}", Op1_days, Op1_salary);
            Op1_total = (Op1_total + Op1_salary);
        }
        Console.WriteLine("Total of option 1 salary is = {0} ", Op1_total);
    }
    static void DisplayOption2(int Op2_days, int Op2_salary, ref int Op2_total)
    {
        Console.WriteLine("Days   Salary");
        Console.WriteLine("1      1");
        for (Op2_days = 2; Op2_days < 11; Op2_days++)
        {
            Op2_salary = Op2_salary * 2;
            Console.WriteLine("{0}      {1}", Op2_days, Op2_salary);
            Op2_total = (Op2_total + Op2_salary);
        }
        Console.WriteLine("Total of option 2 salary is = {0} ", Op2_total);
    }

C＃如何比较循环值的2个结果

2 个答案: