随机数猜测游戏 - 限制猜测次数

Question

我正在尝试制作一个程序，用于生成用户猜测的随机数。这也限制了用户可以猜的次数（或应该）

 var highLimit = 5; 
     var randNum = Math.floor((Math.random() * highLimit) + 1); 
     var allowedGuesses = 2; 
     var numGuesses = 0; 

     function guessingGame() { 
      if (numGuesses <= allowedGuesses) {      

       do { 
        inputNum = document.numForm.number.value; 
        inputNum = parseInt(inputNum); 


        if (inputNum < randNum && inputNum > 1) { 
         document.numForm.gameResults.value = "Sorry, your guess was too low."; 
         numGuesses++; 
        } 

        else if (inputNum > randNum && inputNum < highLimit) { 
         document.numForm.gameResults.value = "Sorry, your guess was too high."; 
         numGuesses++; 
        } 
        else if (inputNum == randNum) { 
         document.numForm.gameResults.value = "Congratulations! You guessed correctly."; 
         numGuesses++; 
        } 

        else { 
         document.numForm.gameResults.value = "Your guess was out of the desired parameters. Please guess again."; 
         numGuesses--; 
        } 

       } while(numGuesses < allowedGuesses && inputNum != randNum); 

      } 

       else { 
        document.numForm.gameResults.value = "Sorry, you have reached the allowed number of guesses, which is " + allowedGuesses + "." + " Click 'New Game' to try again."; 
       } 
      return false; 
     } 

     numGuesses = 0; 
     function newGame() { 
       randNum = Math.floor((Math.random() * highLimit) + 1); 
       guessingGame(); 
       return false; 
      } 

和HTML：

<form name = "numForm"> 
     <fieldset> 
      <label for = "randNum">Enter a number between 1 and 5: </label> 
      <input type = "text" name = "number" value = "" id = "randNum" size = "1" maxlength = "1" /> 
     </fieldset> 
     <input class = "button" type = "button" name = "submit" onclick = "guessingGame()" value = "Submit Number" /> 

     <input class = "button" type = "reset" name = "newGame" onclick = "newGame()" value = "New Game" /> 
     <fieldset> 
      <textarea name = "gameResults" onclick = "" readonly = "true" value = "" rows = "5" cols = "40" ></textarea> 
     </fieldset> 
    </form> 

眼下，该方案是停留在一个无限循环，因为HighLimit时是设置为5.但是，如果我将它设置为10，则该程序起作用。我怎样才能解决它，所以它可以在任何价值？我也赞赏其他改进建议。

提前致谢！

Answer 1

我想你不需要在这一个循环。你可以简单地说：

function guessingGame() { 
    if (numGuesses < 0){numGuesses=0;} 
    if ((numGuesses < allowedGuesses) && (inputNum != randNum)) {      
      inputNum = document.numForm.number.value; 
      inputNum = parseInt(inputNum); 


      if (inputNum < randNum && inputNum > 1) { 
       document.numForm.gameResults.value = "Sorry, your guess was too low."; 
       numGuesses++; 
      } 

      else if (inputNum > randNum && inputNum < highLimit) { 
       document.numForm.gameResults.value = "Sorry, your guess was too high."; 
       numGuesses++; 
      } 
      else if (inputNum == randNum) { 
       document.numForm.gameResults.value = "Congratulations! You guessed correctly."; 
       numGuesses++; 
      } 

      else { 
       document.numForm.gameResults.value = "Your guess was out of the desired parameters. Please guess again."; 
       numGuesses--; 
      } 
    } 

     else { 
      document.numForm.gameResults.value = "Sorry, you have reached the allowed number of guesses, which is " + allowedGuesses + "." + " Click 'New Game' to try again."; 
     } 
    return false; 
} 

if (numGuesses < 0){numGuesses=0;}也会有帮助。对于负面情况。