在c中的隨機數猜謎遊戲的麻煩＃

Question

因此，我正在爲一個在1-100之間隨機生成的數字在猜謎遊戲中的學校項目工作。目前我唯一遇到的問題是，每當用戶輸入一個新號碼時，生成的號碼也會改變。我試着將代碼放在表單加載器中生成數字，但後來在程序中無法訪問它。這是迄今爲止我所擁有的。

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace WindowsFormsApplication5 
{ 

    public partial class Form1 : Form 
    { 
     public Form1() 
     { 

      InitializeComponent(); 
     } 

     private void Form1_Load(object sender, EventArgs e) 
     { 

     } 

     private void guessButton_Click(object sender, EventArgs e) 
     { 

      int userGuess; 
      userGuess = int.Parse(guessText.Text); 
      Random rand = new Random(); 
      int number = rand.Next(1, 100); 

       label2.Text = "" + number; 


        if (userGuess > number) 
        { 
         resultLabel.Text = "Your guess is too high"; 
        } 

        else if (userGuess < number) 
        { 
         resultLabel.Text = "Your guess is too low."; 
        } 

      else if (userGuess == number) 
      { 
       resultLabel.Text = "That is correct!"; 
      } 

       guessText.Clear(); 



     } 

     private void exitButton_Click(object sender, EventArgs e) 
     { 
      this.Close(); 
     } 
    } 
} 

Answer 1

當前標準的，將Random數字每天都在guessButton_Click功能運行時間覆蓋。

您聲明Random的guessButton_Click函數內部，即每次guess按鈕被點擊時間稱爲（這也是內存泄漏！）。 要解決，聲明它作爲一個全局變量，在命名空間：

編輯：下面的代碼編譯正確，和完美的作品。

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace WindowsFormsApplication5 
{ 

    public partial class Form1 : Form 
    { 
     int number = new Random().Next(1, 100); 
     public Form1() 
     { 
      InitializeComponent(); 
     } 

     private void Form1_Load(object sender, EventArgs e) 
     { 

     } 

     private void guessButton_Click(object sender, EventArgs e) 
     { 

      int userGuess; 
      userGuess = int.Parse(guessText.Text); 
      label2.Text = "" + number; 


      if (userGuess > number) 
      { 
       resultLabel.Text = "Your guess is too high"; 
      } 

      else if (userGuess < number) 
      { 
       resultLabel.Text = "Your guess is too low."; 
      } 

      else if (userGuess == number) 
      { 
       resultLabel.Text = "That is correct!"; 
      } 

      guessText.Clear(); 



     } 

     private void exitButton_Click(object sender, EventArgs e) 
     { 
      this.Close(); 
     } 
    } 
} 

Answer 2

你得到一個新的隨機數的每個按鈕單擊嘗試以下操作：

public partial class Form1 : Form 
{ 

    Random rand; 
    int number; 

    public Form1() 
    { 
     InitializeComponent(); 

    } 

    private void Form1_Load(object sender, EventArgs e) 
    { 
     rand = new Random(); 
     number = rand.Next(1, 100); 
    } 

    private void guessButton_Click(object sender, EventArgs e) 
    { 
     int userGuess; 
     userGuess = int.Parse(guessText.Text); 

     label2.Text = "" + number; 


     if (userGuess > number) 
     { 
      resultLabel.Text = "Your guess is too high"; 
     } 

     else if (userGuess < number) 
     { 
      resultLabel.Text = "Your guess is too low."; 
     } 

     else if (userGuess == number) 
     { 
      resultLabel.Text = "That is correct!"; 
     } 

     guessText.Clear(); 
    } 


}