我想要做一个简单的兴趣计算器,其中一个人输入一个数字(1 - 4)他们想要计算,然后输入给定的数字,并得到缺少的变量。C#简单的利息计算器开关错误
代码:
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.");
}
}
}
我不断(使用单声道)得到这个错误在编译过程:
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'
在你的代码中,在任何情况下都会改变: initial = Convert.ToInt32(Console.ReadLine); to initial = Convert.ToInt32(Console.ReadLine()); 做同样的“时间” – 2015-02-09 07:47:36
我还建议你不要使用'final'这个词作为变量的名称,只是为了好的做法(因为它是一个关键字)。 最后,不要直接尝试将用户的输入转换为整数。如果您填写非数字值,该应用将崩溃。 – Tarske 2015-02-09 07:50:14
@Tarske虽然我同意你关于不使用关键字作为标识符我看到在这里使用final没有错,因为它不是C#中的关键字 – 2015-02-09 09:54:29