我是bootstrap的新手，我只是尝试使用bootstrap构建表单。当我点击ESC按钮时显示和解除，但它完全无效（我无法点击，或保存更改按钮）。
<!DOCTYPE html>
<!--
To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor.
-->
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Заголовок</title> <link href="bootstrap-3.3.4/dist/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<header>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar"
aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Project name</a>
</div>
<div id="navbar" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="index2.htm">About</a></li>
<li><a href="index3.htm">Contact</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role ="button"
aria-expanded="false">Dropdown<span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-right">
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#mySignIn">Sign in</button>
<span class="text-warning">or</span>
<!--<button type="button" class="btn btn-success" data-toggle="modal" data-target="#mySignUp">Sign up</button>-->
<div class="modal fade" id="mySignIn" tabindex="-1" role="dialog"
aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"
><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body">
<p>dvcdfji uewhfiu ehfie wk.j fberhb efuih eiuh iuerhuei
fknvdkjb gerbe iurf uei fiuer . erb fb ueyfg iu? rkjhfviuerhf uiehr,jb dfhb
fvndfb dfiv n!!!</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary" >Save changes</button>
</div>
</div>
</div>
</div>
</form>
</div>
</div>
</nav>
</header>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="bootstrap-3.3.4/dist/js/bootstrap.min.js"></script>
</body>
</html>
答案 0 :(得分：0)
这里是代码更新
<!DOCTYPE html>
<!--
To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor.
-->
<html>
<head>
<meta charset="UTF-8">
<meta content="width=device-width, initial-scale=1" name="viewport">
<title>Заголовок</title>
<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<header>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button class="navbar-toggle collapsed" data-target=
"#navbar" data-toggle="collapse" type="button"><span class=
"sr-only">Toggle navigation</span> <span class=
"icon-bar"></span> <span class="icon-bar"></span>
<span class="icon-bar"></span></button> <a class=
"navbar-brand" href="#">Project name</a>
</div>
<div class="collapse navbar-collapse" id="navbar">
<ul class="nav navbar-nav">
<li class="active">
<a href="#">Home</a>
</li>
<li>
<a href="index2.htm">About</a>
</li>
<li>
<a href="index3.htm">Contact</a>
</li>
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown"
href="#">Dropdown<span class="caret"></span></a>
<ul class="dropdown-menu">
<li>
<a href="#">Action</a>
</li>
<li>
<a href="#">Another action</a>
</li>
<li>
<a href="#">Something else here</a>
</li>
<li class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li>
<a href="#">Separated link</a>
</li>
<li>
<a href="#">One more separated link</a>
</li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-right">
<button class="btn btn-primary" data-target="#mySignIn"
data-toggle="modal" type="button">Sign in</button>
<span class="text-warning">or</span>
<!--<button type="button" class="btn btn-success" data-toggle="modal" data-target="#mySignUp">Sign up</button>-->
</form>
</div>
</div>
</nav>
</header>
<div class="modal fade" id="mySignIn" tabindex="-1">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button class="close" data-dismiss="modal" type=
"button"><span>×</span></button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body">
<p>dvcdfji uewhfiu ehfie wk.j fberhb efuih eiuh iuerhuei
fknvdkjb gerbe iurf uei fiuer . erb fb ueyfg iu?
rkjhfviuerhf uiehr,jb dfhb fvndfb dfiv n!!!</p>
</div>
<div class="modal-footer">
<button class="btn btn-default" data-dismiss="modal" type=
"button">Close</button> <button class="btn btn-primary"
type="button">Save changes</button>
</div>
</div>
</div>
</div><!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
</body>
</html>
根据文档http://getbootstrap.com/javascript/#modals
Modal markup placement
Always try to place a modal's HTML code in a top-level position in your document to avoid other components affecting the modal's appearance and/or functionality.
所以我把div class =“modal”移到了顶层。 希望这会有所帮助。