Question

我正在尝试将两个函数correct[]和wrong[]的反馈显示为用户回答问题。我添加了jQuery ready函数，试图在提示之前显示我想要的所有内容，但没有成功。我已经将ready函数写入我的代码几次，但没有运气。有人可以帮忙吗？

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<html>

<head>
<meta charset="UTF-8">
<title>Simple Math Quiz</title>
<script>
      $("document").ready(function() {
         $("body").css("background-color", "green");
      });
</script>
</head> 
<body>
   <br><br>
   <p><em><strong>Feedback</strong></em></p><p><br><br>
      <script>
//Question array			
			var question = ["1. What is 1+1?",
                         "2. What is 2+2?",
                         "3. What is 3+3?",
                         "4. What is 4+4?",
								 "5. What is 5+5?"
                        ];
//Other Variables
			var qlength = question.length;
			var counter = 0;
         var answer = ["2", "4", "6", "8", "10"];
//First box to tell the viewer whats going on
			alert('Answer the following 5 questions to determine if you are 1st grade smart.');
//Loop that asks the questions
         	for (var i = 0; i < qlength; i++)
				{
					var userAnswer = prompt(question[i]); //Stores the answer to each question in userAnswer
						//Actions for correct answer
						if (userAnswer == answer[i])
						{
							alert('Correct');							
							correct(i);
							var counter = counter + 1;      //Adds one to the counter for correct answers           
						}
						//Actions for wrong answer
						else
						{						
							alert('Wrong');
							wrong(i);
						}            
				}
//Functions
			function correct(i)
			{
				document.write(i + 1, ". Correct" + "<br>");
			}	         
			function wrong(i)
			{
				document.write(i + 1, ". Wrong, correct answer = ", answer[i], "<br>");
			}
//Calculates the results based on the counter
			document.write("<br>You got " + counter + " answers out of 5 correct.");    
		</script>
	</p>
</body>

</html>

Answer 1

加载后永远不要使用document.write。它擦除了页面和脚本。而是更新标签 - 在这里我使用你已经用来附加答案的jQuery

// These needed to be and STAY global
// Question array			
var question = ["1. What is 1+1?",
  "2. What is 2+2?",
  "3. What is 3+3?",
  "4. What is 4+4?",
  "5. What is 5+5?"
];
//Other Variables
var qlength = question.length;
var counter = 0;
var answer = ["2", "4", "6", "8", "10"];


$("document").ready(function() {
  $("body").css("background-color", "green");
  ask();
  $("#result").append("<br>You got " + counter + " answer"+(counter==1?"":"s")+" out of 5 correct.");

});


function ask() {
  //First box to tell the viewer whats going on
  alert('Answer the following 5 questions to determine if you are 1st grade smart.');
  //Loop that asks the questions
  for (var i = 0; i < qlength; i++) {
    var userAnswer = prompt(question[i]); //Stores the answer to each question in userAnswer
    //Actions for correct answer
    if (userAnswer == answer[i]) {
      alert('Correct');
      correct(i);
      counter++; //Adds one to the counter for correct answers           
    }
    //Actions for wrong answer
    else {
      alert('Wrong');
      wrong(i);
    }
  }
}


function correct(i) {
  $("#result").append(i + 1, ". Correct" + "<br>");
}

function wrong(i) {
  $("#result").append(i + 1, ". Wrong, correct answer = ", answer[i], "<br>");
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p><em> <strong> Feedback </strong></em>
</p>
<p id="result"></p>

呈现页面后，Javascript / Jquery运行脚本

1 个答案: