JavaScript- 图片无缝滚动

时间：2023-03-09 00:22:46
JavaScript- 图片无缝滚动

　　图片向上、向下、向左、向右不间断无缝滚动.

　　图片向下滚动：

<div id="colee" style="overflow: hidden; height: 253px; width: 410px;">

            <div id="colee1">

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

            </div>

            <div id="colee2">

            </div>

        </div>

        <script type="text/javascript">

            var speed = ;

            var colee2 = document.getElementById("colee2");

            var colee1 = document.getElementById("colee1");

            var colee = document.getElementById("colee");

            colee2.innerHTML = colee1.innerHTML; //克隆colee1为colee2

            function Marquee1() {

                //当滚动至colee1与colee2交界时

                if (colee2.offsetTop - colee.scrollTop <= ) {

                    colee.scrollTop -= colee1.offsetHeight; //colee跳到最顶端

                } else {

                    colee.scrollTop++

                }

            }

            var MyMar1 = setInterval(Marquee1, speed)//设置定时器

            //鼠标移上时清除定时器达到滚动停止的目的

            colee.onmouseover = function () { clearInterval(MyMar1) }

            //鼠标移开时重设定时器

            colee.onmouseout = function () { MyMar1 = setInterval(Marquee1, speed) }

        </script>

　　图片向下滚动

<div id="colee_bottom" style="overflow: hidden; height: 253px; width: 410px;">

            <div id="colee_bottom1">

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                <p>

                    <img src="/jscss/demoimg/200907/bg3.jpg"></p>

            </div>

            <div id="colee_bottom2">

            </div>

        </div>

        <script>

            var speed =

            var colee_bottom2 = document.getElementById("colee_bottom2");

            var colee_bottom1 = document.getElementById("colee_bottom1");

            var colee_bottom = document.getElementById("colee_bottom");

            colee_bottom2.innerHTML = colee_bottom1.innerHTML

            colee_bottom.scrollTop = colee_bottom.scrollHeight

            function Marquee2() {

                if (colee_bottom1.offsetTop - colee_bottom.scrollTop >= )

                    colee_bottom.scrollTop += colee_bottom2.offsetHeight

                else {

                    colee_bottom.scrollTop--

                }

            }

            var MyMar2 = setInterval(Marquee2, speed)

            colee_bottom.onmouseover = function () { clearInterval(MyMar2) }

            colee_bottom.onmouseout = function () { MyMar2 = setInterval(Marquee2, speed) }

        </script>

　　图片向左滚动

<div id="colee_left" style="overflow: hidden; width: 500px;">

            <table cellpadding="" cellspacing="" border="">

                <tr>

                    <td id="colee_left1" valign="top" align="center">

                        <table cellpadding="" cellspacing="" border="">

                            <tr align="center">

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                            </tr>

                        </table>

                    </td>

                    <td id="colee_left2" valign="top">

                    </td>

                </tr>

            </table>

        </div>

        <script>

            //使用div时，请保证colee_left2与colee_left1是在同一行上.

            var speed = //速度数值越大速度越慢

            var colee_left2 = document.getElementById("colee_left2");

            var colee_left1 = document.getElementById("colee_left1");

            var colee_left = document.getElementById("colee_left");

            colee_left2.innerHTML = colee_left1.innerHTML

            function Marquee3() {

                if (colee_left2.offsetWidth - colee_left.scrollLeft <= )//offsetWidth 是对象的可见宽度

                    colee_left.scrollLeft -= colee_left1.offsetWidth//scrollWidth 是对象的实际内容的宽，不包边线宽度

                else {

                    colee_left.scrollLeft++

                }

            }

            var MyMar3 = setInterval(Marquee3, speed)

            colee_left.onmouseover = function () { clearInterval(MyMar3) }

            colee_left.onmouseout = function () { MyMar3 = setInterval(Marquee3, speed) }

        </script>

　　图片向右滚动

<!--下面是向右滚动代码-->

        <div id="colee_right" style="overflow: hidden; width: 500px;">

            <table cellpadding="" cellspacing="" border="">

                <tr>

                    <td id="colee_right1" valign="top" align="center">

                        <table cellpadding="" cellspacing="" border="">

                            <tr align="center">

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                                <td>

                                    <p>

                                        <img src="/jscss/demoimg/200907/bg3.jpg"></p>

                                </td>

                            </tr>

                        </table>

                    </td>

                    <td id="colee_right2" valign="top">

                    </td>

                </tr>

            </table>

        </div>

        <script>

            var speed = //速度数值越大速度越慢

            var colee_right2 = document.getElementById("colee_right2");

            var colee_right1 = document.getElementById("colee_right1");

            var colee_right = document.getElementById("colee_right");

            colee_right2.innerHTML = colee_right1.innerHTML

            function Marquee4() {

                if (colee_right.scrollLeft <= )

                    colee_right.scrollLeft += colee_right2.offsetWidth

                else {

                    colee_right.scrollLeft--

                }

            }

            var MyMar4 = setInterval(Marquee4, speed)

            colee_right.onmouseover = function () { clearInterval(MyMar4) }

            colee_right.onmouseout = function () { MyMar4 = setInterval(Marquee4, speed) }

        </script>

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