jQuery基础知识--Form基础(续)

时间：2021-08-19 16:11:05

下拉框应用

<!DOCTYPE html>

<html>

<head lang="en">

    <meta charset="UTF-8">

    <script type="text/javascript" src="../../js/jquery-2.1.3.js"></script>

    <title></title>

    <style type="text/css">

        * { margin:0; padding:0; }

        div.centent {

            float:left;

            text-align: center;

            margin: 10px;

        }

        span {

            display:block;

            margin:2px 2px;

            padding:4px 10px;

            background:#898989;

            cursor:pointer;

            font-size:12px;

            color:white;

        }

    </style>

</head>

<body>

<div class="centent">

    <select multiple id="select1" style="width: 100px; height: 160px;">

        <option value="1">选项1</option>

        <option value="2">选项2</option>

        <option value="3">选项3</option>

        <option value="4">选项4</option>

        <option value="5">选项5</option>

        <option value="6">选项6</option>

        <option value="7">选项7</option>

        <option value="8">选项8</option>

    </select>

    <div>

        <span id="add">选中添加到右边&gt;&gt;</span>

        <span id="add_all">全部添加到右边&gt;&gt;</span>

    </div>

</div>

<div class="centent">

    <select multiple id="select2" style="width: 100px; height: 160px;">

    </select>

    <div>

        <span id="remove">&lt;&lt;选中删除到左边</span>

        <span id="remove_all">&lt;&lt;全部删除到左边</span>

    </div>

</div>

</body>

<script type="text/javascript">

    $(function () {

        $("#add").click(function () {

//            //方法1

//            var $options = $('#select1 option:selected');

//            var $remove = $options.remove();

//            $remove.appendTo('#select2');

            //方法2

            var $options = $('#select1 option:selected');

            $options.appendTo('#select2');

        });

        $("#add_all").click(function () {

            var $options = $("#select1 option");

            $options.appendTo("#select2");

        });

        $("#select1").dblclick(function () {

            var $options = $('#select1 option:selected');

            $options.appendTo('#select2');

        });

        $("#remove").click(function () {

            var $options = $("#select2 option:selected");

            $options.appendTo("#select1");

        });

        $("#remove_all").click(function () {

            var $options = $("#select2 option");

            $options.appendTo("#select1");

        });

        $("#select2").dblclick(function () {

            var $options = $("#select2 option:selected");

            $options.appendTo("#select1");

        });

    })

</script>

</html>

表单验证

<!DOCTYPE html>

<html>

<head lang="en">

    <meta charset="UTF-8">

    <script type="text/javascript" src="../../js/jquery-2.1.3.js"></script>

    <title></title>

    <link href="css/style.css" rel="stylesheet" type="text/css" />

</head>

<body>

<form method="post" action="">

    <div class="int">

        <label for="username">用户名:</label>

        <input type="text" id="username" class="required" />

    </div>

    <div class="int">

        <label for="email">邮箱:</label>

        <input type="text" id="email" class="required" />

    </div>

    <div class="int">

        <label for="personinfo">个人资料:</label>

        <input type="text" id="personinfo" />

    </div>

    <div class="sub">

        <input type="submit" value="提交" id="send" /><input type="reset" id="res" />

    </div>

</form>

</body>

<script type="text/javascript">

    $(function () {

        //添加必填标识

        $("form :input.required").each(function () {

            $(this).parent().append("<strong class='high'>*</strong>");

        });

        //当输入框失去焦点时进行验证

        $("form :input").blur(function () {

            var $parent = $(this).parent();

            $parent.find(".formtips").remove();

            //验证username

            if($(this).is("#username")) {

                if(this.value == "" || this.value.length < 6) {

                    var errorMsg = "请输入至少6位的用户名.";

                    $parent.append("<span class='formtips onError'>" + errorMsg + "</span>")

                } else {

                    var okMsg = "输入正确";

                    $parent.append("<span class='formtips onSuccess'>" + okMsg + "</span>")

                }

            }

            //验证email

            if($(this).is("#email")) {

                if(this.value == "" || (this.value != "" && !/.+@.+\.[a-zA-Z]{2,4}$/.test(this.value) ) ) {

                    var errorMsg = "请输入正确格式的E-Mail地址";

                    $parent.append("<span class='formtips onError'>" + errorMsg + "</span>")

                } else {

                    var okMsg = "输入正确";

                    $parent.append("<span class='formtips onSuccess'>" + okMsg + "</span>")

                }

            }

        }).keyup(function () {//实时提醒

            $(this).triggerHandler("blur");

        }).focus(function () {

            $(this).triggerHandler("blur");

        });

        //提交--没有错误才能提交

        $("#send").click(function () {

            $("form .required:input").trigger("blur");

            var numErr = $("form .onError").length;

            if(numErr) {

                return false;

            }

            alert("注册成功!");

        });

    })

</script>

</html>

相关文章