C# 我认为我的功能可能是错误的
所以我不确定我到底做错了什么。我想我可能用错了函数。当我运行该程序时,它不会询问用户想要做什么,但如果我按下一个按钮,它会不断重复地将菜单记录到控制台,只需按一次。我的国旗也可能有问题。对不起,我对这个很陌生C# 我认为我的功能可能是错误的,c#,C#,所以我不确定我到底做错了什么。我想我可能用错了函数。当我运行该程序时,它不会询问用户想要做什么,但如果我按下一个按钮,它会不断重复地将菜单记录到控制台,只需按一次。我的国旗也可能有问题。对不起,我对这个很陌生 using System; class Purse { double check_balance(int p, int n, int d, int q) { return (p + 5 * n + 10 * d + 25 * q); }
using System;
class Purse
{
double check_balance(int p, int n, int d, int q)
{
return (p + 5 * n + 10 * d + 25 * q);
}
double insert(int p, int n, int d, int q)
{
return (p + 5 * n + 10 * d + 25 * q);
}
double remove(int p, int n, int d, int q)
{
return (p + 5 * n + 10 * d + 25 * q);
}
public static void Main()
{
int p = 0, n = 0, d = 0, q = 0, pChange = 0, nChange = 0, dChange = 0, qChange = 0;
bool flag = true; // Flag
char menu;
Purse myBalance = new Purse();
menu = Console.ReadKey().KeyChar;
while (flag)
{
Console.WriteLine("What would you like to do?\n1. Check Balance\n2. Deposit\n3. Withdraw\n0. Close program");
if (menu == 1)// Check the balance
{
myBalance.check_balance(p, n, d, q);
continue;
}
else if (menu == 2)// Deposit
{
Console.WriteLine("Deposit how many pennies?");
pChange = int.Parse(Console.ReadLine());
p = p + pChange;
Console.WriteLine("Deposit how many nickels?");
nChange = int.Parse(Console.ReadLine());
n = n + nChange;
Console.WriteLine("Deposit how many dimes?");
dChange = int.Parse(Console.ReadLine());
d = d + dChange;
Console.WriteLine("Deposit how many quarters?");
qChange = int.Parse(Console.ReadLine());
q = q + qChange;
myBalance.insert(p, n, d, q);
continue;
}
else if (menu == 3)// Withdraw
{
Console.WriteLine("Withdraw how many pennies?");
pChange = int.Parse(Console.ReadLine());
p = p - pChange;
Console.WriteLine("Withdraw how many nickels?");
nChange = int.Parse(Console.ReadLine());
n = n - nChange;
Console.WriteLine("withdraw how many dimes?");
dChange = int.Parse(Console.ReadLine());
d = d - dChange;
Console.WriteLine("Withdraw how many quarters?");
qChange = int.Parse(Console.ReadLine());
q = q - qChange;
myBalance.remove(p, n, d, q);
continue;
}
else if(menu == 0)// close the menu
{
flag = false;
break;
}
else// Improper input
{
Console.WriteLine("Please enter a menu number.");
continue;
}
}
Console.WriteLine("The program will now exit.");
}
}
当我运行程序时,它不会询问用户想要做什么
只需移动菜单=Console.ReadKey.KeyChar;在Console.WriteLine之后,您想做什么?\n1。检查余额\n2。存款\n3。撤消\n0。关闭程序;应该是这样的:
while (flag)
{
Console.WriteLine(
"What would you like to do?\n1. Check Balance\n2. Deposit\n3. Withdraw\n0. Close program");
menu = Console.ReadKey().KeyChar;
如果我按下一个按钮,它将继续记录菜单到控制台重复一次按下
因为
1-Console.ReadKey不在主循环中。
2-您应该将菜单值作为类似字符的ifmenu='0'或其值ifmenu==48进行比较
比如说
else if (menu == 0) // close the menu
{
flag = false;
break;
}
应改为
else if (menu == '0') // close the menu
{
flag = false;
break;
}
你试过菜单=='3'了吗?比如把“”和选项放在一起?先打印选项,然后问菜单选项。谢谢大家!我想我现在明白了!