使用时无法在JavaScript中使用HTML变量在浏览器中打印整个JavaScript代码

这是我无法从html表单访问JavaScript变量的注册表单，而是在浏览器中打印整个JavaScript代码。我不包括CSS文件在这里，因为它是正确的，请与我这些代码

HTML代码

<form action = "book.js" name = "myform" onsubmit="return hello();">
<label for = "f_name" class = "ft"> First Name: </label>
<input  type = "textbox" name = "f_name" class = "desi" placeholder = "f_name">
<br><br>
<label for = "l_name" class = "ft"> Last Name: </label>
<input type = "textbox" name = "l_name" class = "desi" placeholder = "l_name">
<br><br>
<label for = "er_no" class = "ft"> Enrollment Number: </label>
<input type = "textbox" name = "er_no" class = "desi" placeholder = "10characters">
<br><br>
<label for = "sem" class = "ft"> Semester: </label>
<input type = "textbox" name = "sem" class = "desi"  placeholder = "less than eight">
<br><br>
<label for = "c_p"class = "ft"> Create Password: </label>
<input type = "password" name = "c_p" class = "desi" placeholder = "8 alphanumeric">
<br><br>
<label for = "e_p" class = "ft"> Enter Password: </label>
<input type = "password" name = "e_p" class = "desi" placeholder = "8 alphanumeric">
<br><br>
<input type = "submit" style = "background-color:yellow;color:red">
</form>

名字：



姓氏：



注册号码：



学期：



创建密码：



输入密码：

JavaScript代码

当我在浏览器中运行时，会打印整个JavaScript代码，如图所示 下面

函数hello（） { var f_name=document.myform.f_name.value； var l_name=document.myform.l_name.value； var er_nos=document.myform.er_no.value； var sems=document.myform.sem.value； var c_ps=document.myform.c_p.value； var e_ps=document.myform.e_p.value； 对于（变量i=0；i=0&&er[i]'8'） { 警告（“无效学期”）； 返回（假）； } 写下“你好”； 返回（真）； }

---

要执行而不是显示JavaScript代码，需要将JavaScript代码封装在

标记中，如下所示

<script type="text/javascript">
// your code
</script>

//你的代码

<script type="text/javascript">
// your code
</script>