Javascript jquery click()和on()不工作
在下面的代码中,单击()不起作用 我尝试$(“登录”)时遇到了什么问题?(“单击”,function(){});功能也不起作用Javascript jquery click()和on()不工作,javascript,jquery,html,click,Javascript,Jquery,Html,Click,在下面的代码中,单击()不起作用 我尝试$(“登录”)时遇到了什么问题?(“单击”,function(){});功能也不起作用 <html> <head> <!--- Links ---> <link rel="stylesheet" href="bootstrap.min.css"> <link rel="stylesheet" href="style.css"> <head>
<html>
<head>
<!--- Links --->
<link rel="stylesheet" href="bootstrap.min.css">
<link rel="stylesheet" href="style.css">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="main.js"></script>
</head>
<!--html-->
<title>Test Page</title>
<script>
$("#login").click(function() {
alert("hai");
});
</script>
</head>
<body onload="$('#reg').toggle();">
<div id="user-area">
<div class="btn-area">
<button id="btnlgn" class="btn btn-outline-primary" onclick="toggleReg()">Login /Register</button>
</div>
<div id="forms">
<div class="form" id="reg">
<form class="form-sigin" id="register">
<input type="text" class="form-control" placeholder="Email" id="email">
<input type="name" class="form-control" placeholder="Full Name" id="name">
<input type="password" class="form-control" placeholder="password" id="password">
<input type="password" class="form-control" placeholder="Re-enter password" id="conPassword">
<input type="tel" class="form-control" placeholder="Mobile Number" id="number">
</form>
<button class="btn" id="register">Register</button>
</div>
<div class="form" id="lgn">
<form class="form-sigin" id="sigin">
<input type="text" class="form-control" placeholder="Email" id="emaillgn">
<input type="password" class="form-control" placeholder="password" id="passwordlgn">
</form>
<button class="btn" id="login">Login</button>
</div>
</div>
</div>
</body>
</html>
测试页
$(“#登录”)。单击(函数(){
警报(“hai”);
});
登录/注册
登记
登录
我试图在按下按钮时显示警报
<script>
$("#login").on("click", function() {
alert("hai");
});
</script>
$(“#登录”)。在(“单击”,函数(){
警报(“hai”);
});
这也不起作用在页面上存在元素之前执行jQuery。将您的代码移动到页面末尾的关闭标记之前,或将其包装在调用中:
<html>
<head>
<!--- Links --->
<link rel="stylesheet" href="bootstrap.min.css">
<link rel="stylesheet" href="style.css">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="main.js"></script>
</head>
<!--html-->
<title>Test Page</title>
<script>
$("#login").click(function() {
alert("hai");
});
</script>
</head>
<body onload="$('#reg').toggle();">
<div id="user-area">
<div class="btn-area">
<button id="btnlgn" class="btn btn-outline-primary" onclick="toggleReg()">Login /Register</button>
</div>
<div id="forms">
<div class="form" id="reg">
<form class="form-sigin" id="register">
<input type="text" class="form-control" placeholder="Email" id="email">
<input type="name" class="form-control" placeholder="Full Name" id="name">
<input type="password" class="form-control" placeholder="password" id="password">
<input type="password" class="form-control" placeholder="Re-enter password" id="conPassword">
<input type="tel" class="form-control" placeholder="Mobile Number" id="number">
</form>
<button class="btn" id="register">Register</button>
</div>
<div class="form" id="lgn">
<form class="form-sigin" id="sigin">
<input type="text" class="form-control" placeholder="Email" id="emaillgn">
<input type="password" class="form-control" placeholder="password" id="passwordlgn">
</form>
<button class="btn" id="login">Login</button>
</div>
</div>
</div>
</body>
</html>
您应该在body标记的末尾编写javascript代码。如果在头部标记之间使用,请使用下面的
<script>
$(function() {
$("#login").click(function() {
alert("hai");
});
});
</script>
$(函数(){
$(“#登录”)。单击(函数(){
警报(“hai”);
});
});