js實現鼠標切換圖片(無定時器)

本文實例為大傢分享瞭js實現鼠標切換圖片的具體代碼,供大傢參考,具體內容如下

實現效果,可以利用鼠標移動在對應的小點點上,或者點擊左右兩側的箭頭切換圖片,並在圖片的上方顯示出圖片的頁數,下方顯示出對應圖片的標題。

全部代碼如下:

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>圖片切換</title>
  <style>
    .picture {
      position: relative;
      width: 500px;
      height: 333px;
      margin: 0 auto;
      border: 2px solid rgb(231, 127, 217);
      overflow: hidden;
    }

    .radius {
      width: 100%;
      height: 10px;
      position: absolute;
      bottom: 30px;
      text-align: center;
    }

    .pg {     //圖片上方頁碼
      position: absolute;
      margin: 0;
      width: 100%;
      height: 20px;
      background-color: rgba(0, 0, 0, .4);
      text-align: center;
      font-size: 16px;
      font-weight: 600;
      color: #fff;
    }

    .title {
      position: absolute;
      width: 100%;
      bottom: 0px;
      text-align: center;
      font-size: 16px;
      font-weight: 600;
      color: rgb(21, 223, 72);
    }

    span {
      display: inline-block;
      border: 10px solid #fdfdfd;
      border-radius: 50%;
    }

    .active {
      border: 10px solid #656466;
    }

    /* 左右箭頭 */
    .arrowhead-left,
    .arrowhead-right {
      position: absolute;
      width: 41px;
      height: 69px;
      font-size: 30px;
      line-height: 70px;
      text-align: center;
      color: #D6D8D4;
      background-color: rgba(0,0,0,.3);
    }

    .arrowhead-left {
      left: 0;
      top: 40%;
    }

    .arrowhead-right {
      right: 0;
      top: 40%;
    }
  </style>
</head>

<body>
  <div class="picture">
    <!-- 圖片頁碼 -->
    <p class="pg">封面</p>
    <img src="./image/d8.jpeg" alt="">

    <!-- 小圓點點 -->
    <p class="radius"></p>
    <!-- 圖片的下面標題 -->
    <p class="title">標題</p>

    <!-- 左右箭頭 -->
    <div class="arrowhead-left" id="al"> < </div> 
    <div class="arrowhead-right" id="ar"> > </div>
  </div>

  <script>
    var address = ["./image/d1.jpeg", "./image/d2.jpeg", "./image/d3.jpeg", "./image/d4.jpeg", "./image/d5.jpeg", "./image/d7.jpeg"];
    // var imgs = document.getElementsByTagName("img");
    var imgs = document.querySelector("img");
    var len = address.length;
    var str = "";
    var pp = document.getElementsByTagName("p");//獲取的是一個集合
    // var pp = document.querySelector("p");  //獲取的是一個元素
    var al = document.getElementById("al");
    var ar = document.getElementById("ar");
    //添加span標簽
    for (i = 0; i < len; i++) {
      str += ' <span></span>'
    }
    console.log(str);
    console.log(pp);
    pp[1].innerHTML = str;
    var spans = pp[1].getElementsByTagName('span');
    spans[0].className = 'active';

    for (i = 0; i < len; i++) {
      spans[i].index = i;
      spans[i].onmouseover = function () {  //所有圓點的類為空
        for (i = 0; i < len; i++) {
          spans[i].className = "";
        }
        this.className = 'active';      //給點擊的span(圓點)添加類名
        imgs.src = address[this.index];  
        pp[0].innerHTML = [this.index + 1] + "/6";
        pp[2].innerHTML = "風光" + [this.index + 1];

      }
    }
    var n = 0 ;
    ar.onclick = function () {

      for (i = 0; i < len; i++) {
        spans[i].className = "";
      }

      spans[n].className = "active";
      imgs.src = address[n];
      pp[0].innerHTML = (n+1) + "/6";
      pp[2].innerHTML = "風光" +(n+1);
      if (n<5) {
        n++; 
      }
      else {
       n=0;
      }
    }
    al.onclick = function () {

     for (i = 0; i < len; i++) {
       spans[i].className = "";
     }
     
     spans[n].className = "active";
     imgs.src = address[n];
     pp[0].innerHTML = (n+1) + "/6";
     pp[2].innerHTML = "風光" +(n+1);
     if (n>0) {
       n--; 
     }
     else {}
      n=(len-1);
     }
     }
  </script>
</body>

</html>

以上就是本文的全部內容,希望對大傢的學習有所幫助,也希望大傢多多支持WalkonNet。