我需要在用户单击“提交”按钮后执行该函数来检查他们的答案并根据给出的答案返回文本。当我输入文本并单击提交按钮时，没有任何反应。 提交按钮应该在单击时执行该功能。然后根据答案是否正确返回一些文本。 我怀疑我的语法有问题，但我检查了很多次都没有结果。
这是我的代码:
<!DOCTYPE html>
<html lang="en-us">
<head>
<meta charset="UTF-8">
<title>Riddle Me This</title>
<link href="HW6Part2.css" type="text/css" rel="stylesheet"/>
</head>
<body>
<div class="text">
<h1 class="head1">First Riddle:</h1>
<p class="first">The more you take, the more you leave behind. What am I?</p>
<h1 class ="head2">Second Riddle:</h1>
<p class="second">What has a head, a tail, is brown, and has no legs?</p>
Input your answer: <br><br>
<form onsubmit="checkAnswer(event)">
Input your answer for the first riddle: <br><br>
<input id="a1" type="text">
<br><br>
Input your answer for the second riddle: <br><br>
<input id="a2" type="text">
<br>
<br>
<input type="submit" value="Submit">
</form>
<p id="response1"></p>
<script>
//Initiate function:
function checkAnswer() {
e.preventDefault();
//Get the user's input
var ans = document.getElementById('a1');
var ans2 = document.getElementById('a2');
//Compare input to the right answer
if (ans != 'footsteps' && ans2 != 'penny'){
document.getElementById('response1').innerHTML = 'Both answers are wrong! Try harder!';}
else if (ans == 'footsteps' && ans2 != 'penny'){
document.getElementById('response1').innerHTML = 'You have solved the first riddle, but failed on the second! Try harder!';}
else if (ans != 'footsteps' && ans2 == 'penny'){
document.getElementById('response1').innerHTML = 'You have solved the second riddle, but failed on the first! Try harder!';}
else{
document.getElementById('response1').innerHTML = 'You have solved both riddles, smartass. Have a cookie!';}
}
// When it loses focus call checkAnswer()
a1.addEventListener('blur', checkAnswer, false);
</script>
<br>
<br>
</div>
</body>
</html>
最佳答案
我检查了您的代码，发现其中第 44 行“a2”处存在语法错误。在下面的代码中，我修复了语法错误。下面的代码可以正常工作。
<html lang="en-us">
<head>
<meta charset="UTF-8">
<title>Riddle Me This</title>
<link href="HW6Part2.css" type="text/css" rel="stylesheet"/>
</head>
<body>
<h1>First Riddle:</h1>
<p>The more you take, the more you leave behind. What am I?</p>
<h1>Second Riddle:</h1>
<p>What has a head, a tail, is brown, and has no legs?</p>
Input your answer: <br><br>
Input your answer for the first riddle: <br><br>
<input id="a1" type="text">
<br><br>
Input your answer for the second riddle: <br><br>
<input id="a2" type="text">
<br>
<br>
<button onclick="checkAnswer()">Submit</button>
<script>
//Initiate function:
function checkAnswer() {
//Get the user's input
var ans = document.getElementById('a1');
var ans2 = document.getElementById('a2');
//Compare input to the right answer
if (ans != 'footsteps' && ans2 != 'penny'){
document.getElementById("response1").outerHTML = 'Both answers are wrong! Try harder!';}
else if (ans == 'footsteps' && ans2 != 'penny'){
document.getElementById("response1").outerHTML = 'You have solved the first riddle, but failed on the second! Try harder!';}
else if (ans != 'footsteps' && ans2 == 'penny'){
document.getElementById("response1").outerHTML = 'You have solved the second riddle, but failed on the first! Try harder!';}
else{
document.getElementById("response1").outerHTML = 'You have solved both riddles, smartass. Have a cookie!';}}
</script>
<br>
<br>
<p id="response1"></p>
</body>
</html>```
关于javascript - Onsubmit 不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58315052/