我想要做一個簡單的興趣計算器,其中一個人輸入一個數字(1 - 4)他們想要計算,然後輸入給定的數字,並得到缺少的變量。C#簡單的利息計算器開關錯誤
代碼:
using System;
using System.Convert;
public class InterestCalculator {
static public void Main(string [] args) {
int final, initial, rate, time, input;
Console.WriteLine("What do you want to calculate? \n 1. Final amount after interest. \n 2. Initial amount after interest. \n 3. Interest rate. \n 4. Time passed");
input = Convert.ToInt32(Console.ReadLine());
switch (input){
case 1:
Console.WriteLine("Enter the initial amount.");
initial = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter the interest rate.");
rate = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter the time passed.");
time = Convert.ToInt32(Console.ReadLine());
final = initial * rate * time;
Console.WriteLine("$" + final + " is the final amount after interest.");
break;
case 2:
Console.WriteLine("Enter the final amount.");
final = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter the interest rate.");
rate = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter the time passed.");
time = Convert.ToInt32(Console.ReadLine);
initial = final/(rate * time);
Console.WriteLine("$" + initial + " is the initial amount before interest.");
break;
case 3:
Console.WriteLine("Enter the final amount.");
final = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter the initial amount.");
initial = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter the time passed.");
time = Convert.ToInt32(Console.ReadLine);
rate = final/(initial * time);
Console.WriteLine("%" + initial + " per time cycle is the interest rate");
break;
case 4:
Console.WriteLine("Enter the final amount.");
final = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter the initial amount.");
initial = Convert.ToInt32(Console.ReadLine);
Console.WriteLine("Enter the interest rate.");
rate = Convert.ToInt32(Console.ReadLine());
time = final/(initial * rate);
Console.WriteLine(initial + " cycles is the amount of time passed.");
break;}
default:
Console.WriteLine("Invalid input.");
}
}
}
我不斷(使用單聲道)得到這個錯誤在編譯過程:
error CS1502: The best overloaded method match for System.Convert.ToInt32(bool) has some invalid arguments
error CS1503: Argument `#1' cannot convert `method group' expression to type `bool'
error CS1502: The best overloaded method match for `System.Convert.ToInt32(bool)' has some invalid arguments
error CS1503: Argument `#1' cannot convert `method group' expression to type `bool'
error CS1502: The best overloaded method match for `System.Convert.ToInt32(bool)' has some invalid arguments
error CS1503: Argument `#1' cannot convert `method group' expression to type `bool'
在你的代碼中,在任何情況下都會改變: initial = Convert.ToInt32(Console.ReadLine); to initial = Convert.ToInt32(Console.ReadLine()); 做同樣的「時間」 – 2015-02-09 07:47:36
我還建議你不要使用'final'這個詞作爲變量的名稱,只是爲了好的做法(因爲它是一個關鍵字)。 最後,不要直接嘗試將用戶的輸入轉換爲整數。如果您填寫非數字值,該應用將崩潰。 – Tarske 2015-02-09 07:50:14
@Tarske雖然我同意你關於不使用關鍵字作爲標識符我看到在這裏使用final沒有錯,因爲它不是C#中的關鍵字 – 2015-02-09 09:54:29