C#字符串转换为整数并比较

您好，我在将字符串转换为int时遇到此错误

string oneamount = "1200.12366";
string twoamount = "121.11";
int x=Int32.Parse(oneamount);
int y = Int32.Parse(twoamount);

      
            if (x > y)
            {
                Console.WriteLine("okay");
            }

错误

---

输入字符串的格式不正确

无法解释@MichaelRandall的评论

整数为整数/无小数位数。如果要与十进制进行比较，请使用

double、float、decimal

您可以将

字符串

值转换为

十进制

，以提高精度

string oneamount = "1200.12366";
string twoamount = "121.11";
var x = Convert.ToDecimal(oneamount);
var y = Convert.ToDecimal(twoamount);

      
            if (x > y)
            {
                Console.WriteLine("okay");
            }

---

请尝试Int32.TryParse函数。它将数字的字符串表示形式转换为其等效的32位有符号整数。返回值指示操作是否成功

string oneamount = "1200.12366";
int oneAmountInt32;
string twoamount = "121.11";
int twoAmountInt32;
Int32.TryParse(oneamount, out oneAmountInt32);
Int32.TryParse(twoamount, out twoAmountInt32);

      
if (oneAmountInt32 > twoAmountInt32)
{
    Console.WriteLine("okay");
}

签名为：

public static bool TryParse (string s, out int result);

例如：

using System;

public class Example
{
   public static void Main()
   {
      String[] values = { null, "160519", "9432.0", "16,667",
                          "   -322   ", "+4302", "(100);", "01FA" };
      foreach (var value in values)
      {
         int number;

         bool success = Int32.TryParse(value, out number);
         if (success)
         {
            Console.WriteLine("Converted '{0}' to {1}.", value, number);
         }
         else
         {
            Console.WriteLine("Attempted conversion of '{0}' failed.",
                               value ?? "<null>");
         }
      }
   }
}
// The example displays the following output:
//       Attempted conversion of '<null>' failed.
//       Converted '160519' to 160519.
//       Attempted conversion of '9432.0' failed.
//       Attempted conversion of '16,667' failed.
//       Converted '   -322   ' to -322.
//       Converted '+4302' to 4302.
//       Attempted conversion of '(100);' failed.
//       Attempted conversion of '01FA' failed.

---

第一个问题是你知道整数是什么吗？@MichaelRandall是的，我知道整数是什么？我可以向你保证它不是，现在下一个问题是它是什么类型的？如何解决这个问题？补充了一个解释@MichaelRandall评论的答案