1、弹出框

<style>
    .mask {
        position: fixed;
        display: none;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        background: rgba(0,0,0,.6);
    }
    
    .mask .login  {
        width: 500px;
        height: 350px;
        background: #fff;
        margin: 150px auto;
    }
</style>
<a href="#">登录</a>
<div class="mask" id="mask">
    <div class="login" id="login">
        
    </div>
</div>
<script>
    var a = document.getElementsByTagName("a")[0];
    var mask = document.getElementById("mask");
    a.onclick = function(event) {
        mask.style.display = "block";
        // 阻止冒泡
        event = event || window.event;
        if (event || event.stopPropagation()) {
            event.stopPropagation();
        } else {
            event.cancelBubble = true;
        }
    }
    document.onclick = function(event) {
        event = event || window.event;
        // 兼容获取触动事件时被传递过来的对象
        var aaa = event.target?event.target:event.srcElement;
        if (aaa.id !== "login") {
            mask.style.display = "none";
        }
    }
</script>

 冒泡事件:

cancalBubblt()和stopPropagation():它们相同之处在于都是用来阻止浏览器默认的事件冒泡行为。不同之处在于stopPropagation()属于W3C标准,适用于Firefox等浏览器,但不支持IE;cancelBubble不符合W3C标准,只支持IE,所以很多时候结合起来使用。
语法:e.stopPropagation(),e代表事件传递的参数,代表事件的状态。

jQuery中对冒泡和默认行为的阻止方法同样可以写成:
event.preventDefault()——> return false;     event.stopPropagation()——> return false;

 

2、响应式设置元素高度

封装一个方法,调用该方法,并传入不同参数,响应式设置高度随宽度适应。

// 用于设置单个元素宽高设置,divName为元素名,rate为高和宽的比
// 调用方法:setHeight(".wrapper", 1);--正方形
// 写法1: 
function setHeight(divName, rate) {
    var w = $(divName).width();
    $(divName).css("height", rate * w + "px");
    $(window).resize(function() {
        var w = $(divName).width();
        $(divName).css("height", rate * w + "px");
    })
}
// 写法2:
function setHeight(obj, n) {
    $(obj).css("height", function() {
        var oWidth = $(this).width() * n;
        $(this).height(oWidth);
    })
}

// 不同元素宽高关系:如对象1的高度等于对象2的n倍
// 调用方法:rateObj("#div2", "#div1", 2);h 
function rateObj(obj1, obj2, n) {
    var oHeight = $(obj2).height()*n;
    $(obj1).css("height", oHeight);
}

 

3、input的判断

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1" />
        <title>input的设置及提交判断</title>
        <script src="../../DG/dealer/js/jquery-3.1.0.min.js"></script>
        <style>
            label {
                display: inline-block;
                width: 80px;
            }
                        
            .submitBtn {
                width: 100px;
                height: 30px;
                text-align: center;
                background: #ccc;
            }
            
            div.changeC {
                background: #F07203 !important;
            }
        </style>
        <script>
            $(function() {
                
                var userN = $(".userN");
                var phone1 = $(".phone1");
                var phone2 = $(".phone2");
                var textArea = $(".area");
                
                // 提交时的判断
                $(".submitBtn").click(function() {
                    
                    userN.focus();
                    phone1.focus();
                    phone2.focus();
                    textArea.focus();
                    
                    if(userN.val()=="" || phone1.val()=="" || phone2.val()=="" || textArea.val()=="") {
                        alert("请确保信息完整");
                    } else {
                        alert("提交成功");
                    }
                });
                
                
                // 表格信息都不为空时改变按钮颜色
                $("input, textarea").on("input", function() {
                    if($.trim($(".userN").val()) !== "" && $.trim($(".phone1").val()) !== "" && $.trim($(".phone2").val()) !== "" && $.trim($(".area").val()) !== "") {
                        $(".submitBtn").addClass("changeC");  
                    }
                    if($(this).val() == "") {
                        $(".submitBtn").removeClass("changeC");
                    }
                })
            })
        </script>
    </head>
    <body>
        <header>
            <h1>关于inputde</h1>
            <!--
                1、focus()元素被鼠标点击或是被tab定位就获得焦点,再取这个元素的值才是最新的。如果不加focus,点击提交获取的输入信息可能不是最新的,如点提交再重新编辑输入框,再提交,提示信息或是之前的。
                2、maxlength对type="text"的框输入的字数有限制,但值为number不行
                3、onkeyup="this.value=this.value.replace(/\D/g, \'\')",input的值只允许数字。
            -->
        </header>
        <section>
            <label>姓名:</label><input class="userN" type="text" /></br>
            <label>手机1:</label><input class="phone1" type="text" maxlength="11" /></br>
            <label>手机2:</label><input class="phone2" type="text" maxlength="11" onkeyup="this.value=this.value.replace(/\D/g, \'\')" /></br></br>
            <label>需求:</label><textarea class="area"></textarea>
            <div id="submitBtn" class="submitBtn">提交</div>
        </section>
    </body>
</html>

 

4、弹框关闭

<script>
            $(function() {
//                $(".openStyle").click(function() {
//                    $("#choiceStyle").css({"height":"4.864rem", "box-shadow":"1px 1px 3px 1px #ccc"});
//                })
                
                // 用这种方式弹框而不用上面那种是因为:上面那种只能在页面初始化时有些,当关闭弹框后就无法弹出了
                $(".openStyle").click(function() {
                    showStyle(event)
                })
                
            });
            
            function showStyle(event) {
                $("#choiceStyle").css({"height":"4.864rem", "box-shadow":"1px 1px 3px 1px #ccc"});
                
                // 控制点击除弹框内容外区域就关闭遮罩而导致不能正常弹出遮罩
                event = event || window.event;
                if(event || event.stopPropagation()) {
                    event.stopPropagation();
                } else {
                    event.cancelBubble = true;
                }
            }
            
            // 点击除弹框内容外区域就关闭遮罩
            document.onclick = function(event) {
                event = event || window.event;
                var aaa = event.target?event.target:event.srcElement;
                if (aaa.id !== "choiceStyle") {
                    $("#choiceStyle").css({"height":"0px", "box-shadow":"none"});
                }
            }
        </script>

 

5、swiper轮播设置

设置轮播中间比较大的效果:
首先,三个swiper-slide的容器相同,在这swiper-slide中里面添加相同宽高的div,其中这个div的宽高都比swiper-slide中的小,然后设置其中选中的那个div的宽高同swiper-slide相同即可。
<style>
.sectionNine {
    width: 1130px;
    height: 247px;
    margin: 0 auto 10%;
    border: 1px solid #ccc;
}

这里如果设置了slidesPerView: 3,  那么swiper-slide的宽的会由整个容器的宽度除3所得。

.sectionNine .swiper-slide {   
    display: flex;
    justify-content: center;
    align-items: center;
}

.secNinePic {
    width: 310px;
    height: 210px;
    overflow: hidden;
}

.secNinePic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiper-slide-active  .secNinePic {  -
    width: 362px; 
    height: 247px;
}
</style>
<div class="swiper-container sectionNine"> <div class="swiper-wrapper"> <div class="swiper-slide"> <div class="secNinePic"> <img src="images/secNine-01.png" /> </div> </div> <div class="swiper-slide"> <div class="secNinePic"> <img src="images/secNine-02.png" /> </div> </div> <div class="swiper-slide"> <div class="secNinePic"> <img src="images/secNine-03.png" /> </div> </div> </div> </div> <script> $(function() { var swiper = new Swiper(".sectionNine", { slidesPerView: 3, centeredSlides: true, // 设置这个,使得中间 项有个swiper-slide-active类,通过这个类去设置中间项与其余两项区别 autoplay: 3000, speed: 2000, loop: true, noSwiping: false, paginationClickable: false, pagination: \'.swiper-pagination .brandSwiper\', autoplayDisableOnInteraction: false, observer: true, observeParents: true }) }) </script>

 

6、swiper图片预加载、中间大两边小

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale, maximum-scale=1, minimum-scale=1" />
        <title>内容归类</title>
        <link href="css/swiper.min.css" rel="stylesheet" />
        <script src="js/jquery-3.1.0.min.js"></script>
        <script src="js/flexible.js"></script>
        <!--http://dsdximg.dsdxo2o.com/ad/2020033118412644180712.js-->
        <script src="js/swiper.min.js"></script>
        <style>
            * {
                padding: 0;
                margin: 0;
                -webkit-box-sizing: border-box;
                -moz-box-sizing: border-box;
                box-sizing: border-box;
            }
            
            .swiper-container {
                height: 6.756rem;
                margin: 2.702rem auto;
                border: 1px solid #000;
            }
            
            .swiper-slide {
                width: 50%;
                height: 100%;
                padding: 0.54rem 0;
                margin: 0 auto;
                -moz-transition: all .5s;  /*设置属性过渡效果,这里指padding值*/
                -webkit-transition: all .5s;
                transition: all .5s;
            }
            .bigCenter {
                width: 96%;
                height: 100%;
                overflow: hidden;
            }
            .bigCenter img {width: 100%;height: 100%;object-fit: cover;}
            
            .swiper-container .swiper-slide-active.swiper-slide {
                padding: 0.27rem 0;   /*设置选中后padding值和原来不一样,改变选中元素高度*/
            }
            .forBg {
                background-repeat: no-repeat;
                background-position: center;
                background-clip: border-box;
            }
        </style>
    </head>
    <body>
        <!--
            作者:535143741@qq.com
            时间:2020-03-31
            描述:在这个例子里,将涉及到以下几个需求,
                1、移动端rem的使用,flexible.js(设置1rem = 37px)
                2、swiper组件,中间位置较高,和左右两边的中线在一个水平线上;
                3、swiper预加载使用(img或背景图)。
        -->
        <div class="swiper-container">
            <div class="swiper-wrapper">
                <!-- 懒加载方式一: 背景图片 -->
                <div class="swiper-slide">
                    <div class="bigCenter forBg swiper-lazy" data-background="http://dsdximg.dsdxo2o.com/goods/202003311827433739154.jpg">
                        <div class="swiper-lazy-preloader"></div>
                    </div>
                </div>
                <!-- 懒加载方式二: 图片-->
                <div class="swiper-slide">
                    <div class="bigCenter">
                        <!--<img src="img/img01.jpg" /> 设置懒加载会改成下面这样,-->
                        <img class="swiper-lazy" data-src="http://dsdximg.dsdxo2o.com/goods/2020033118272410156671.jpg" />
                        <div class="swiper-lazy-preloader"></div>
                    </div>
                </div>
                <div class="swiper-slide">
                    <div class="bigCenter">
                        <img class="swiper-lazy" data-src="http://dsdximg.dsdxo2o.com/goods/2020033118275076284651.jpg" />
                        <div class="swiper-lazy-preloader"></div>
                    </div>
                </div>
                <div class="swiper-slide">
                    <div class="bigCenter">
                        <img class="swiper-lazy" data-src="http://dsdximg.dsdxo2o.com/goods/202003311827397252206.jpg" />
                        <div class="swiper-lazy-preloader"></div>
                    </div>
                </div>
                <div class="swiper-slide">
                    <div class="bigCenter">
                        <img class="swiper-lazy" data-src="http://dsdximg.dsdxo2o.com/goods/2020033118274722242062.jpg" />
                        <div class="swiper-lazy-preloader"></div>
                    </div>
                </div>
                
            </div>
        </div>
        <script>
            var swiper = new  Swiper(".swiper-container", {
                slidesPerView: \'auto\',
                centeredSlides: true,
                loop: true,
                autoplay: 3000,
                speed: 1000,
                lazyLoading: true,  // 预加载
                watchSlidesProgress: true,  // 设置watchSlidesVisibility就要设置这个
                watchSlidesVisibility: true, // 设置slidesPerView就要设置这个
                lazyLoadingInPrevNext: true,  // 提前预加载
                lazyLoadingPrevNextAmount: 2
            })
        </script>
    </body>
</html>

 

 

 

 

 

7、待续

版权声明:本文为L-xjco原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接和本声明。
本文链接:https://www.cnblogs.com/L-xjco/p/11609849.html