namespace Calculator
{
class Program
{
static void Main(string[] args)
{
Program calc = new Program();
Program validate = new Program();
bool valid = true;
while (valid == true)
{
Console.WriteLine("Supported functions are *, /, +, -, ^, %.");
Console.WriteLine("If you would like to find the greater number separate the numbers with a '?'");
String userInput = Console.ReadLine();
valid = validate.ValEntry(userInput);
Console.WriteLine(calc.Calculate(userInput));
}/////////////////////////////////////////////////////////////////////////
private string Calculate(string input)
{
int opstringloc = findoperator(input);
int firstval = int.Parse(input.Substring(0, opstringloc));
int secondval = int.Parse(input.Substring(0, opstringloc));
char operation = Convert.ToChar(input.Substring(opstringloc));
switch (operation)
{
case '+':
return Convert.ToString(firstval+secondval);
break;
case '-':
return Convert.ToString(firstval-secondval);
break;
case '/':
return Convert.ToString(firstval/secondval);
break;
case '*':
return Convert.ToString(firstval*secondval);
break;
case '%':
return Convert.ToString(firstval%secondval);
break;
case '^':
return Convert.ToString(firstval^secondval);
break;
case '?':
if (firstval<secondval)
{
return ("[0] < [1]"); Convert.ToString(firstval); Convert.ToString(secondval);
}
else if (firstval>secondval)
{
return("[0] > [1]"); Convert.ToString(firstval); Convert.ToString(secondval);
}
else if (firstval==secondval)
{
return ("[0] = [1]"); Convert.ToString(firstval); Convert.ToString(secondval);
}
break;
default:
return ("Invalid Entry, please try again.");
break;
}
return ("Invalid Entry, please try again.");
}
private bool ValEntry(string entry)
{
for (int p = 0; p < entry.Length; p++)
if (char.IsDigit(entry[p]))
{
return true;
}
else if ((entry[p] == '+') || (entry[p] == '-') || (entry[p] == '*') || (entry[p] == '/') || (entry [p] == '%') || (entry [p] == '^') || (entry[p] == '?'))
{
return true;
}
else
{
return false;
}
return false;
}
private int findoperator (string oploc)
{
for (int loc = 0; loc < oploc.Length; loc++)
{
if (!char.IsDigit(oploc[loc])) return loc;
}
return -1;
}
}
}
} // Moving this to where it belongs shows the error in the location of the }.
我正在尝试创建一个验证用户输入的计算器，然后使用用户输入运行计算。程序一直告诉我它需要一种命名空间定义或期望的文件结尾，我需要一个大括号。我看了，每个大括号都有一个伙伴，据我所知，它看起来像我的所有实例都在这个类中。我的编程课程只有两周，所以如果我听起来像初学者，请原谅我。我已经在这两天工作了，我无法弄清楚我做错了什么。如果你知道我做错了什么，请解释一下。我把一堆“/”放在计算机告诉我需要另一个大括号的地方旁边。
答案 0 :(得分：3)
您的主要方法在移至private string Calculate()之前未被关闭。在while结束后应该有另一个}。然后，您只需要删除文档末尾的}之一。
答案 1 :(得分：1)
你在while循环结束后错过了一个结束括号。
试试这个：
namespace Calculator
{
internal class Program
{
private static void Main(string[] args)
{
Program calc = new Program();
Program validate = new Program();
bool valid = true;
while (valid == true)
{
Console.WriteLine("Supported functions are *, /, +, -, ^, %.");
Console.WriteLine("If you would like to find the greater number separate the numbers with a '?'");
String userInput = Console.ReadLine();
valid = validate.ValEntry(userInput);
Console.WriteLine(calc.Calculate(userInput));
} /////////////////////////////////////////////////////////////////////////
}
private string Calculate(string input)
{
int opstringloc = findoperator(input);
int firstval = int.Parse(input.Substring(0, opstringloc));
int secondval = int.Parse(input.Substring(0, opstringloc));
char operation = Convert.ToChar(input.Substring(opstringloc));
switch (operation)
{
case '+':
return Convert.ToString(firstval + secondval);
break;
case '-':
return Convert.ToString(firstval - secondval);
break;
case '/':
return Convert.ToString(firstval/secondval);
break;
case '*':
return Convert.ToString(firstval*secondval);
break;
case '%':
return Convert.ToString(firstval%secondval);
break;
case '^':
return Convert.ToString(firstval ^ secondval);
break;
case '?':
if (firstval < secondval)
{
return ("[0] < [1]");
Convert.ToString(firstval);
Convert.ToString(secondval);
}
else if (firstval > secondval)
{
return ("[0] > [1]");
Convert.ToString(firstval);
Convert.ToString(secondval);
}
else if (firstval == secondval)
{
return ("[0] = [1]");
Convert.ToString(firstval);
Convert.ToString(secondval);
}
break;
default:
return ("Invalid Entry, please try again.");
break;
}
return ("Invalid Entry, please try again.");
}
private bool ValEntry(string entry)
{
for (int p = 0; p < entry.Length; p++)
if (char.IsDigit(entry[p]))
{
return true;
}
else if ((entry[p] == '+') || (entry[p] == '-') || (entry[p] == '*') || (entry[p] == '/') ||
(entry[p] == '%') || (entry[p] == '^') || (entry[p] == '?'))
{
return true;
}
else
{
return false;
}
return false;
}
private int findoperator(string oploc)
{
for (int loc = 0; loc < oploc.Length; loc++)
{
if (!char.IsDigit(oploc[loc])) return loc;
}
return -1;
}
}
}
答案 2 :(得分：0)
您没有正确计算。一个
之后Console.WriteLine(calc.Calculate(userInput));
并在结尾删除一个。
然后我只需将String更改为string。更可能......