使用javascript进行MCQ验证_Javascript_Html

使用javascript进行MCQ验证

javascript html

使用javascript进行MCQ验证,javascript,html,Javascript,Html,我想用javascript检查我的mcq问题。如果答案是第四个，它应该警告正确，否则它应该警告错误。以下是我尝试过的代码： <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Problem</title> <link rel="stylesheet" type="text/css"

我想用javascript检查我的mcq问题。如果答案是第四个，它应该警告正确，否则它应该警告错误。以下是我尝试过的代码：

<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Problem</title>
    <link rel="stylesheet" type="text/css" href="mycss.css"/>
    <script type="text/javascript">
        function validate1(){
            one = document.getElementById("1");     
            two = document.getElementById("2");     
            three = document.getElementById("3");       

if ( (one.checked == true) || (two.checked ==  true) || (three.checked == true)  ){
    window.alert ('Wrong answer');
}
else {
    window.alert ('correct checked');
}   
    </script> 
</head>
<body>
    <h2 align="center">Problems on trains</h2><br></br>
    <form name="ques1" action="" method="post" onSubmit="return validate1();">

    <h5>1. A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train? </h5>
    &nbsp;&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp120<input type="radio" name="one" value="120" id="1"/>
    &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp180<input type="radio" name="one" value="180" id="2"/>
    &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp324<input type="radio" name="one" value="324" id="3"/>
    &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp150<input type="radio" name="one" value="150" id="4"/>
    <input type="submit" value="check"/>
    </form> 

</body>
</html>

PMI，但MCQ将是…？多项选择题您提交的内容不包含任何问题。如果选择了4，为什么不直接做呢。选中{//correct}否则{//error}我也使用了该选项。但它仍然没有显示正确的警报框