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Teacher's comments：
Collection
Collection
index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>jquery实战之在线相册管理器</title> <link rel="stylesheet" type="text/css" href="css/style.css"> <script type="text/javascript" src="js/jquery.js"></script> <script type="text/javascript" src="js/demo.js"></script> </head> <body> <div class="wrap"> <div class="header"> <h2>在线相册管理器</h2> <p> <label for="img_url">请输入图片地址:</label> <!-- <input type="text" name="img_url" id="img_url" placeholder="images/demo.jpg" value="images/zly.jpg"> --> <input type="text" name="img_url" id="img_url" placeholder="images/demo.jpg"> </p> <p>请选择图片类型: <input type="radio" id="rect" name="border" value="0" checked><label for="rect">直角</label> <input type="radio" id="radius" name="border" value="10%"><label for="radius">圆角</label> <input type="radio" id="circle" name="border" value="50%"><label for="circle">圆型</label> </p> <p>图片是否添加阴影: <select name="shadow"> <option value="0" selected>不添加</option> <option value="1">添加</option> </select> </p> <p><button class="add">添加图片</button></p> </div> <div class="main"> <ul></ul> </div> </div> </body> </html>
点击 "运行实例" 按钮查
style.css
.wrap {
width: 360px;
height: auto;
background-color: lightyellow;
border: 1px solid #cecece;
color: #363636;
}
.wrap .header {
padding: 15px;
/*background-color: wheat;*/
}
.wrap .header h2 {
text-align: center;
}
.add {
width: 100px;
height: 30px;
border: none;
cursor: pointer;
background-color: skyblue;
color: white;
}
.add:hover {
background-color: orange;
font-size:1.1em;
}
.main {
/*background-color: lightgreen;*/
/*padding: 15px;*/
overflow: hidden;
}
.main ul {
padding: 0;
margin: 0;
}
.main ul li {
list-style-type: none;
float: left;
margin-left: 20px;
margin-bottom: 10px;
width: 150px;
height: 200px;
text-align: center;
}
.main ul li button {
margin:3px;
border: none;
border-radius: 20%;
background-color: lightgreen;;
}
.main ul li button:hover {
background-color: orange;
color:white;
cursor: pointer;
}
demo.js
实例
$(document).ready(function() {
$('button.add').on('click',
function() {
var img_url = $('#img_url').val() if (img_url.length == 0) {
alert('请选择一张图片') $('#img_url').focus() return false
}
console.log(img_url.length) var img_type = $(':radio:checked').val() var shadow = 'none'
if ($(':selected').val() == 1) {
shadow = '3px 3px 3px #666'
}
var img = $('<img>').prop('src', img_url).width(150).height(150).css({
'border-radius': img_type,
'box-shadow': shadow
}) var before = $('<button>').text('前移') var after = $('<button></button').text('后移') var remove = $('<button></button').text('删除') var li = $('<li>').append(img, before, after, remove) li.appendTo('ul') before.click(function() {
$(this).parent().prev().before($(this).parent())
});
after.click(function() {
$(this).parent().next().after($(this).parent())
});
remove.click(function() {
$(this).parent().remove()
})
})
})点击 "运行实例" 按钮查看在线实例
Ajax_POST
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Ajax_POST</title>
</head>
<body>
<form action="api/check.php" method="post">
<fieldset>
<legend>用户登录</legend>
<p>
<label for="email">邮箱:</label>
<input type="email" name="email" id="email">
</p>
<p>
<label for="password">密码:</label>
<input type="password" name="password" id="password">
</p>
<p>
<button>登录</button>
<span id="tips" style="font-size:1.2em;font-weight: bolder;color:red"></span>
</p>
</fieldset>
</form>
</body>
</html>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
$('button:first').click (function(){
$.post(
'api/user.php?m=login',
{
"email": $('#email').val(),
"password": $('#password').val()
},
function(data){
if (data == '1') {
$('#tips').text('登录成功,正在跳转中...')
setTimeout(function(){
location.href = 'api/index.php'
},2000)
} else {
$('#tips').text('邮箱或密码错误,请重新输入...')
$('#email').focus()
setTimeout("$('#tips').empty()",2000)
}
}, 'json')
return false
})
</script>点击 "运行实例" 按钮查看在线实例
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