原生js和jquery实现图片轮播特效

 1 <div id="wrapper"><!-- 最外层部分 --> 2     <div id="banner"><!-- 轮播部分 --> 3       <ul class="imgList"><!-- 图片部分 --> 4       <li><a href="#"><img src="./img/test1.jpg" width="400px" height="200px" alt="puss in boots1"></a></li> 5       <li><a href="#"><img src="./img/test2.jpg" width="400px" height="200px" alt="puss in boots2"></a></li> 6       <li><a href="#"><img src="./img/test3.jpg" width="400px" height="200px" alt="puss in boots3"></a></li> 7       <li><a href="#"><img src="./img/test4.jpg" width="400px" height="200px" alt="puss in boots4"></a></li> 8       <li><a href="#"><img src="./img/test5.jpg" width="400px" height="200px" alt="puss in boots5"></a></li> 9       </ul>10       <img src="./img/prev.png" width="20px" height="40px" id="prev">11       <img src="./img/next.png" width="20px" height="40px" id="next">12       <div class="bg"></div> <!-- 图片底部背景层部分-->13       <ul class="infoList"><!-- 图片左下角文字信息部分 -->14         <li class="infoOn">puss in boots1</li>15         <li>puss in boots2</li>16         <li>puss in boots3</li>17         <li>puss in boots4</li>18         <li>puss in boots5</li>19       </ul>20       <ul class="indexList"><!-- 图片右下角序号部分 -->21         <li class="indexOn">1</li>22         <li>2</li>23         <li>3</li>24         <li>4</li>25         <li>5</li>26       </ul>27     </div>

 1 <style type="text/css"> 2   body,div,ul,li,a,img{margin: 0;padding: 0;} 3   ul,li{list-style: none;} 4   a{text-decoration: none;} 5   6   #wrapper{position: relative;margin: 30px auto;width: 400px;height: 200px;} 7   #banner{position:relative;width: 400px;height: 200px;overflow: hidden;} 8   .imgList{position:relative;width:2000px;height:200px;z-index: 10;overflow: hidden;} 9   .imgList li{float:left;display: inline;}10   #prev,11   #next{position: absolute;top:80px;z-index: 20;cursor: pointer;opacity: 0.2;filter:alpha(opacity=20);}12   #prev{left: 10px;}13   #next{right: 10px;}14   #prev:hover,15   #next:hover{opacity: 0.5;filter:alpha(opacity=50);}16   .bg{position: absolute;bottom: 0;width: 400px;height: 40px;z-index:20;opacity: 0.4;filter:alpha(opacity=40);background: black;}17   .infoList{position: absolute;left: 10px;bottom: 10px;z-index: 30;}18   .infoList li{display: none;}19   .infoList .infoOn{display: inline;color: white;}20   .indexList{position: absolute;right: 10px;bottom: 5px;z-index: 30;}21   .indexList li{float: left;margin-right: 5px;padding: 2px 4px;border: 2px solid black;background: grey;cursor: pointer;}22   .indexList .indexOn{background: red;font-weight: bold;color: white;}23 </style>

1 var curIndex = 0, //当前index2      imgLen = $(".imgList li").length; //图片总数

 1 // 定时器自动变换2.5秒每次 2 var autoChange = setInterval(function(){  3   if(curIndex < imgLen-1){  4     curIndex ++;  5   }else{  6     curIndex = 0; 7   } 8   //调用变换处理函数 9   changeTo(curIndex); 10 },2500);

 1 //左箭头滑入滑出事件处理 2 $("#prev").hover(function(){  3   //滑入清除定时器 4   clearInterval(autoChange); 5 },function(){  6   //滑出则重置定时器 7   autoChangeAgain(); 8 }); 9 //左箭头点击处理10 $("#prev").click(function(){ 11   //根据curIndex进行上一个图片处理12   curIndex = (curIndex > 0) ? (--curIndex) : (imgLen - 1);13   changeTo(curIndex);14 });

 1 //右箭头滑入滑出事件处理 2  $("#next").hover(function(){  3    //滑入清除定时器 4    clearInterval(autoChange); 5  },function(){  6    //滑出则重置定时器 7    autoChangeAgain(); 8  }); 9  //右箭头点击处理10  $("#next").click(function(){ 11    curIndex = (curIndex < imgLen - 1) ? (++curIndex) : 0;12    changeTo(curIndex);13  });

 1 //清除定时器时候的重置定时器--封装 2   function autoChangeAgain(){  3       autoChange = setInterval(function(){  4       if(curIndex < imgLen-1){  5         curIndex ++; 6       }else{  7         curIndex = 0; 8       } 9     //调用变换处理函数10       changeTo(curIndex); 11     },2500);12     }

1 function changeTo(num){ 2     var goLeft = num * 400;3     $(".imgList").animate({left: "-" + goLeft + "px"},500);4     $(".infoList").find("li").removeClass("infoOn").eq(num).addClass("infoOn");5     $(".indexList").find("li").removeClass("indexOn").eq(num).addClass("indexOn");6   }

 1 //对右下角按钮index进行事件绑定处理等 2   $(".indexList").find("li").each(function(item){  3     $(this).hover(function(){  4       clearInterval(autoChange); 5       changeTo(item); 6       curIndex = item; 7     },function(){  8       autoChangeAgain(); 9     });10   });

  1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  2 <html xmlns="http://www.w3.org/1999/xhtml">  3 <head>  4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  5 <title>图片轮播 jq(左右切换)</title>  6 <style type="text/css">  7   body,div,ul,li,a,img{margin: 0;padding: 0;}  8   ul,li{list-style: none;}  9   a{text-decoration: none;} 10   #wrapper{position: relative;margin: 30px auto;width: 400px;height: 200px;} 11   #banner{position:relative;width: 400px;height: 200px;overflow: hidden;} 12   .imgList{position:relative;width:2000px;height:200px;z-index: 10;overflow: hidden;} 13   .imgList li{float:left;display: inline;} 14   #prev, 15   #next{position: absolute;top:80px;z-index: 20;cursor: pointer;opacity: 0.2;filter:alpha(opacity=20);} 16   #prev{left: 10px;} 17   #next{right: 10px;} 18   #prev:hover, 19   #next:hover{opacity: 0.5;filter:alpha(opacity=50);} 20   .bg{position: absolute;bottom: 0;width: 400px;height: 40px;z-index:20;opacity: 0.4;filter:alpha(opacity=40);background: black;} 21   .infoList{position: absolute;left: 10px;bottom: 10px;z-index: 30;} 22   .infoList li{display: none;} 23   .infoList .infoOn{display: inline;color: white;} 24   .indexList{position: absolute;right: 10px;bottom: 5px;z-index: 30;} 25   .indexList li{float: left;margin-right: 5px;padding: 2px 4px;border: 2px solid black;background: grey;cursor: pointer;} 26   .indexList .indexOn{background: red;font-weight: bold;color: white;} 27 </style> 28 </head> 29 <body> 30   <div id="wrapper"><!-- 最外层部分 --> 31     <div id="banner"><!-- 轮播部分 --> 32       <ul class="imgList"><!-- 图片部分 --> 33         <li><a href="#"><img src="./img/test1.jpg" width="400px" height="200px" alt="puss in boots1"></a></li> 34       <li><a href="#"><img src="./img/test2.jpg" width="400px" height="200px" alt="puss in boots2"></a></li> 35       <li><a href="#"><img src="./img/test3.jpg" width="400px" height="200px" alt="puss in boots3"></a></li> 36       <li><a href="#"><img src="./img/test4.jpg" width="400px" height="200px" alt="puss in boots4"></a></li> 37       <li><a href="#"><img src="./img/test5.jpg" width="400px" height="200px" alt="puss in boots5"></a></li> 38       </ul> 39       <img src="./img/prev.png" width="20px" height="40px" id="prev"> 40       <img src="./img/next.png" width="20px" height="40px" id="next"> 41       <div class="bg"></div> <!-- 图片底部背景层部分--> 42       <ul class="infoList"><!-- 图片左下角文字信息部分 --> 43         <li class="infoOn">puss in boots1</li> 44         <li>puss in boots2</li> 45         <li>puss in boots3</li> 46         <li>puss in boots4</li> 47         <li>puss in boots5</li> 48       </ul> 49       <ul class="indexList"><!-- 图片右下角序号部分 --> 50         <li class="indexOn">1</li> 51         <li>2</li> 52         <li>3</li> 53         <li>4</li> 54         <li>5</li> 55       </ul> 56     </div> 57   </div> 58   <script type="text/javascript" src="./js/jquery.min.js"></script> 59   <script type="text/javascript"> 60   var curIndex = 0, //当前index 61       imgLen = $(".imgList li").length; //图片总数 62      // 定时器自动变换2.5秒每次 63   var autoChange = setInterval(function(){  64     if(curIndex < imgLen-1){  65       curIndex ++;  66     }else{  67       curIndex = 0; 68     } 69     //调用变换处理函数 70     changeTo(curIndex);  71   },2500); 72    //左箭头滑入滑出事件处理 73   $("#prev").hover(function(){  74     //滑入清除定时器 75     clearInterval(autoChange); 76   },function(){  77     //滑出则重置定时器 78     autoChangeAgain(); 79   }); 80   //左箭头点击处理 81   $("#prev").click(function(){  82     //根据curIndex进行上一个图片处理 83     curIndex = (curIndex > 0) ? (--curIndex) : (imgLen - 1); 84     changeTo(curIndex); 85   }); 86   //右箭头滑入滑出事件处理 87   $("#next").hover(function(){  88     //滑入清除定时器 89     clearInterval(autoChange); 90   },function(){  91     //滑出则重置定时器 92     autoChangeAgain(); 93   }); 94   //右箭头点击处理 95   $("#next").click(function(){  96     curIndex = (curIndex < imgLen - 1) ? (++curIndex) : 0; 97     changeTo(curIndex); 98   }); 99   //对右下角按钮index进行事件绑定处理等100   $(".indexList").find("li").each(function(item){ 101     $(this).hover(function(){ 102       clearInterval(autoChange);103       changeTo(item);104       curIndex = item;105     },function(){ 106       autoChangeAgain();107     });108   });109   //清除定时器时候的重置定时器--封装110   function autoChangeAgain(){ 111       autoChange = setInterval(function(){ 112       if(curIndex < imgLen-1){ 113         curIndex ++;114       }else{ 115         curIndex = 0;116       }117     //调用变换处理函数118       changeTo(curIndex); 119     },2500);120     }121   function changeTo(num){ 122     var goLeft = num * 400;123     $(".imgList").animate({left: "-" + goLeft + "px"},500);124     $(".infoList").find("li").removeClass("infoOn").eq(num).addClass("infoOn");125     $(".indexList").find("li").removeClass("indexOn").eq(num).addClass("indexOn");126   }127   </script>128 </body>129 </html>

1 var curIndex = 0, //当前index2       imgArr = getElementsByClassName("imgList")[0].getElementsByTagName("li"), //获取图片组3       imgLen = imgArr.length,4       infoArr = getElementsByClassName("infoList")[0].getElementsByTagName("li"), //获取图片info组5       indexArr = getElementsByClassName("indexList")[0].getElementsByTagName("li"); //获取控制index组

 1   // 定时器自动变换2.5秒每次 2 var autoChange = setInterval(function(){  3   if(curIndex < imgLen -1){  4     curIndex ++;  5   }else{  6     curIndex = 0; 7   } 8   //调用变换处理函数 9   changeTo(curIndex); 10 },2500);

 1 //清除定时器时候的重置定时器--封装 2  function autoChangeAgain(){  3      autoChange = setInterval(function(){  4      if(curIndex < imgLen -1){  5        curIndex ++; 6      }else{  7        curIndex = 0; 8      } 9    //调用变换处理函数10      changeTo(curIndex); 11    },2500);12    }

 1 //通过class获取节点 2  function getElementsByClassName(className){  3    var classArr = []; 4    var tags = document.getElementsByTagName('*'); 5    for(var item in tags){  6      if(tags[item].nodeType == 1){  7        if(tags[item].getAttribute('class') == className){  8          classArr.push(tags[item]); 9        }10      }11    }12    return classArr; //返回13  }14  15  // 判断obj是否有此class16  function hasClass(obj,cls){  //class位于单词边界17    return obj.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'));18   }19   //给 obj添加class20  function addClass(obj,cls){ 21    if(!this.hasClass(obj,cls)){ 22       obj.className += cls;23    }24  }25  //移除obj对应的class26  function removeClass(obj,cls){ 27    if(hasClass(obj,cls)){ 28      var reg = new RegExp('(\\s|^)' + cls + '(\\s|$)');29         obj.className = obj.className.replace(reg,'');30    }31  }

 1 //图片组相对原始左移dist px距离 2  function goLeft(elem,dist){  3    if(dist == 400){ //第一次时设置left为0px 或者直接使用内嵌法 style="left:0;" 4      elem.style.left = "0px"; 5    } 6    var toLeft; //判断图片移动方向是否为左 7    dist = dist + parseInt(elem.style.left); //图片组相对当前移动距离 8    if(dist<0){   9      toLeft = false;10      dist = Math.abs(dist);11    }else{ 12      toLeft = true;13    }14    for(var i=0;i<= dist/20;i++){ //这里设定缓慢移动，10阶每阶40px15      (function(_i){ 16        var pos = parseInt(elem.style.left); //获取当前left17        setTimeout(function(){ 18          pos += (toLeft)? -(_i * 20) : (_i * 20); //根据toLeft值指定图片组位置改变19          //console.log(pos);20          elem.style.left = pos + "px";21        },_i * 25); //每阶间隔50毫秒22      })(i);23    }24  }

 1 //左右切换处理函数 2   function changeTo(num){  3     //设置image 4     var imgList = getElementsByClassName("imgList")[0]; 5     goLeft(imgList,num*400); //左移一定距离 6     //设置image 的 info 7     var curInfo = getElementsByClassName("infoOn")[0]; 8     removeClass(curInfo,"infoOn"); 9     addClass(infoArr[num],"infoOn");10     //设置image的控制下标 index11     var _curIndex = getElementsByClassName("indexOn")[0];12     removeClass(_curIndex,"indexOn");13     addClass(indexArr[num],"indexOn");14   }

 1 //给左右箭头和右下角的图片index添加事件处理 2  function addEvent(){ 3   for(var i=0;i<imgLen;i++){  4     //闭包防止作用域内活动对象item的影响 5     (function(_i){  6     //鼠标滑过则清除定时器，并作变换处理 7     indexArr[_i].onmouseover = function(){  8       clearTimeout(autoChange); 9       changeTo(_i);10       curIndex = _i;11     };12     //鼠标滑出则重置定时器处理13     indexArr[_i].onmouseout = function(){ 14       autoChangeAgain();15     };16      })(i);17   }18  19   //给左箭头prev添加上一个事件20   var prev = document.getElementById("prev");21   prev.onmouseover = function(){ 22     //滑入清除定时器23     clearInterval(autoChange);24   };25   prev.onclick = function(){ 26     //根据curIndex进行上一个图片处理27     curIndex = (curIndex > 0) ? (--curIndex) : (imgLen - 1);28     changeTo(curIndex);29   };30   prev.onmouseout = function(){ 31     //滑出则重置定时器32     autoChangeAgain();33   };34  35    //给右箭头next添加下一个事件36   var next = document.getElementById("next");37   next.onmouseover = function(){ 38     clearInterval(autoChange);39   };40   next.onclick = function(){ 41     curIndex = (curIndex < imgLen - 1) ? (++curIndex) : 0;42     changeTo(curIndex);43   };44   next.onmouseout = function(){ 45     autoChangeAgain();46   };47 }

  1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  2 <html xmlns="http://www.w3.org/1999/xhtml">  3 <head>  4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  5 <title>图片轮播 js原生(左右切换)</title>  6 <style type="text/css">  7   body,div,ul,li,a,img{margin: 0;padding: 0;}  8   ul,li{list-style: none;}  9   a{text-decoration: none;} 10   11   #wrapper{position: relative;margin: 30px auto;width: 400px;height: 200px;} 12   #banner{position:relative;width: 400px;height: 200px;overflow: hidden;} 13   .imgList{position:relative;width:2000px;height:200px;z-index: 10;overflow: hidden;} 14   .imgList li{float:left;display: inline;} 15   #prev, 16   #next{position: absolute;top:80px;z-index: 20;cursor: pointer;opacity: 0.2;filter:alpha(opacity=20);} 17   #prev{left: 10px;} 18   #next{right: 10px;} 19   #prev:hover, 20   #next:hover{opacity: 0.5;filter:alpha(opacity=50);} 21   .bg{position: absolute;bottom: 0;width: 400px;height: 40px;z-index:20;opacity: 0.4;filter:alpha(opacity=40);background: black;} 22   .infoList{position: absolute;left: 10px;bottom: 10px;z-index: 30;} 23   .infoList li{display: none;} 24   .infoList .infoOn{display: inline;color: white;} 25   .indexList{position: absolute;right: 10px;bottom: 5px;z-index: 30;} 26   .indexList li{float: left;margin-right: 5px;padding: 2px 4px;border: 2px solid black;background: grey;cursor: pointer;} 27   .indexList .indexOn{background: red;font-weight: bold;color: white;} 28 </style> 29 </head> 30 <body> 31   <div id="wrapper"><!-- 最外层部分 --> 32     <div id="banner"><!-- 轮播部分 --> 33       <ul class="imgList"><!-- 图片部分 --> 34         <li><a href="#"><img src="./img/test1.jpg" width="400px" height="200px" alt="puss in boots1"></a></li> 35       <li><a href="#"><img src="./img/test2.jpg" width="400px" height="200px" alt="puss in boots2"></a></li> 36       <li><a href="#"><img src="./img/test3.jpg" width="400px" height="200px" alt="puss in boots3"></a></li> 37       <li><a href="#"><img src="./img/test4.jpg" width="400px" height="200px" alt="puss in boots4"></a></li> 38       <li><a href="#"><img src="./img/test5.jpg" width="400px" height="200px" alt="puss in boots5"></a></li> 39       </ul> 40       <img src="./img/prev.png" width="20px" height="40px" id="prev"> 41       <img src="./img/next.png" width="20px" height="40px" id="next"> 42       <div class="bg"></div> <!-- 图片底部背景层部分--> 43       <ul class="infoList"><!-- 图片左下角文字信息部分 --> 44         <li class="infoOn">puss in boots1</li> 45         <li>puss in boots2</li> 46         <li>puss in boots3</li> 47         <li>puss in boots4</li> 48         <li>puss in boots5</li> 49       </ul> 50       <ul class="indexList"><!-- 图片右下角序号部分 --> 51         <li class="indexOn">1</li> 52         <li>2</li> 53         <li>3</li> 54         <li>4</li> 55         <li>5</li> 56       </ul> 57     </div> 58   </div> 59   <script type="text/javascript"> 60   var curIndex = 0, //当前index 61       imgArr = getElementsByClassName("imgList")[0].getElementsByTagName("li"), //获取图片组 62       imgLen = imgArr.length, 63       infoArr = getElementsByClassName("infoList")[0].getElementsByTagName("li"), //获取图片info组 64       indexArr = getElementsByClassName("indexList")[0].getElementsByTagName("li"); //获取控制index组 65      // 定时器自动变换2.5秒每次 66   var autoChange = setInterval(function(){  67     if(curIndex < imgLen -1){  68       curIndex ++;  69     }else{  70       curIndex = 0; 71     } 72     //调用变换处理函数 73     changeTo(curIndex);  74   },2500); 75   76   //清除定时器时候的重置定时器--封装 77   function autoChangeAgain(){  78       autoChange = setInterval(function(){  79       if(curIndex < imgLen -1){  80         curIndex ++; 81       }else{  82         curIndex = 0; 83       } 84     //调用变换处理函数 85       changeTo(curIndex);  86     },2500); 87     } 88   89   //调用添加事件处理 90   addEvent(); 91   92   //给左右箭头和右下角的图片index添加事件处理 93  function addEvent(){ 94   for(var i=0;i<imgLen;i++){  95     //闭包防止作用域内活动对象item的影响 96     (function(_i){  97     //鼠标滑过则清除定时器，并作变换处理 98     indexArr[_i].onmouseover = function(){  99       clearTimeout(autoChange);100       changeTo(_i);101       curIndex = _i;102     };103     //鼠标滑出则重置定时器处理104     indexArr[_i].onmouseout = function(){ 105       autoChangeAgain();106     };107      })(i);108   }109  110   //给左箭头prev添加上一个事件111   var prev = document.getElementById("prev");112   prev.onmouseover = function(){ 113     //滑入清除定时器114     clearInterval(autoChange);115   };116   prev.onclick = function(){ 117     //根据curIndex进行上一个图片处理118     curIndex = (curIndex > 0) ? (--curIndex) : (imgLen - 1);119     changeTo(curIndex);120   };121   prev.onmouseout = function(){ 122     //滑出则重置定时器123     autoChangeAgain();124   };125  126    //给右箭头next添加下一个事件127   var next = document.getElementById("next");128   next.onmouseover = function(){ 129     clearInterval(autoChange);130   };131   next.onclick = function(){ 132     curIndex = (curIndex < imgLen - 1) ? (++curIndex) : 0;133     changeTo(curIndex);134   };135   next.onmouseout = function(){ 136     autoChangeAgain();137   };138 }139  140   //左右切换处理函数141   function changeTo(num){ 142     //设置image143     var imgList = getElementsByClassName("imgList")[0];144     goLeft(imgList,num*400); //左移一定距离145     //设置image 的 info146     var curInfo = getElementsByClassName("infoOn")[0];147     removeClass(curInfo,"infoOn");148     addClass(infoArr[num],"infoOn");149     //设置image的控制下标 index150     var _curIndex = getElementsByClassName("indexOn")[0];151     removeClass(_curIndex,"indexOn");152     addClass(indexArr[num],"indexOn");153   }154  155  156   //图片组相对原始左移dist px距离157   function goLeft(elem,dist){ 158     if(dist == 400){ //第一次时设置left为0px 或者直接使用内嵌法 style="left:0;"159       elem.style.left = "0px";160     }161     var toLeft; //判断图片移动方向是否为左162     dist = dist + parseInt(elem.style.left); //图片组相对当前移动距离163     if(dist<0){  164       toLeft = false;165       dist = Math.abs(dist);166     }else{ 167       toLeft = true;168     }169     for(var i=0;i<= dist/20;i++){ //这里设定缓慢移动，10阶每阶40px170       (function(_i){ 171         var pos = parseInt(elem.style.left); //获取当前left172         setTimeout(function(){ 173           pos += (toLeft)? -(_i * 20) : (_i * 20); //根据toLeft值指定图片组位置改变174           //console.log(pos);175           elem.style.left = pos + "px";176         },_i * 25); //每阶间隔50毫秒177       })(i);178     }179   }180  181   //通过class获取节点182   function getElementsByClassName(className){ 183     var classArr = [];184     var tags = document.getElementsByTagName('*');185     for(var item in tags){ 186       if(tags[item].nodeType == 1){ 187         if(tags[item].getAttribute('class') == className){ 188           classArr.push(tags[item]);189         }190       }191     }192     return classArr; //返回193   }194  195   // 判断obj是否有此class196   function hasClass(obj,cls){  //class位于单词边界197     return obj.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'));198    }199    //给 obj添加class200   function addClass(obj,cls){ 201     if(!this.hasClass(obj,cls)){ 202        obj.className += cls;203     }204   }205   //移除obj对应的class206   function removeClass(obj,cls){ 207     if(hasClass(obj,cls)){ 208       var reg = new RegExp('(\\s|^)' + cls + '(\\s|$)');209          obj.className = obj.className.replace(reg,'');210     }211   }212  213   </script>214 </body>215 </html>