如何在Javascript中创建数学上正确且可接受的除法

Question

该代码不会为exp创建数学上正确的除法。它创建像2/0等的除法，并且也不接受“ 1/3”的舍入答案，例如“ 0.33”或“ 0.33333”。我需要更改代码中的什么？感谢您的帮助和时间。

document.getElementById("button1").addEventListener("click", question);

var mulDiv = document.getElementById("mulDiv");

function question()
{
var startButton = document.getElementById("button1");
var number1 = document.getElementById("number1");
var number2 = document.getElementById("number2");
var decider = Math.random();
    
button1.textContent = "New Question";
number1.textContent = Math.floor(Math.random()*5);
number2.textContent = Math.floor(Math.random()*5);
    

mulDiv.textContent = "/"  

};

document.getElementById("button2").addEventListener("click", answer);


function answer()
{
var num1 = parseInt(document.getElementById("number1").textContent, 10);
var num2 = parseInt(document.getElementById("number2").textContent, 10);
var answer = parseInt(document.getElementById("userAnswer").value, 10);
var feedBack = document.getElementById("feedBack");
    
     
if (mulDiv.textContent == "/"){
if(answer == num1 / num2) {
feedBack.textContent = "right";

} else {
feedBack.textContent = "wrong";
}
}
      	
};

<button id = "button1">
Start
</button>

<p>
<label id = "number1"> </label>
<label id = "mulDiv"> </label>
<label id = "number2"> </label>
 = <input id = "userAnswer" type=text>
<button id = "button2">Answer</button>
</p>

<p id = "feedBack"> </p>

Answer 1

此行代码：

number2.textContent = Math.floor(Math.random()*5);

生成从0到4的随机数，因为Math.random()返回从0到1（不包括1）的数字。您应该这样做：

number2.textContent = 1 + Math.floor(Math.random()*4);

这样，最小值将为1，最大值将为5。