javascript - 在页面加载时显示目录中的图像

Question

只是想知道是否可以调整我的代码以在加载时在页面上显示第一个目录的图像，以便在用户单击菜单选项之前显示它们，因为在菜单选项出现之前页面看起来有点不正常选中，这是我的代码，谢谢。

< script >
  $(document).ready(function() {
    $("a").click(function() {
      var dir_path = $(this).data("albumid");
      //var txt=$(this).text();
      //$(this).text(txt);
      LoadGallery(dir_path);
      return false;
    });
  });

function LoadGallery(dir_path) {
  $.ajax({
    url: dir_path,
    success: function(data) {
      $(".image-container").empty();

      $(data).find("a:contains(.jpg), a:contains(.png), a:contains(.jpeg)").each(function() {
        this.href.replace(window.location.host, "").replace("http:///", "");
        var file = dir_path + $(this).text();
        $(".image-container").append($("<a href='javascript:;' class='thumb' data-src='" + file + "'><img src='" + file + "' title='Click to enlarge' alt='#'/></a>"));

        if ($(".image-container").children("a").length === 30) {
          return false;
        }
      });

      $(".image-container").append("<strong><p>Click on a thumb nail to show a larger image.</p></strong>");

      $(".thumb").bind('click', function() {
        var Popup = "<div class='bg'></div>" + "<div class='wrapper'><img src='<img src=''/>" + "<label href='javascript:;' class='prev-image'>«</label><label href='javascript:;' class='next-image'>»</label><a href='javascript:;' class='close' title='Close'>Close</a>";
        var Img = $(this).attr("data-src");
        $("body").prepend(Popup);
        $(".bg").height($(window).height() * 4);
        $(".wrapper img").attr("src", Img);

        $(".prev-image").bind('click', function() {
          var prev = $(".image-container").find("img[src='" + Img + "']").parent().prev('a').find("img").attr('src');
          if (!prev || prev.length === 0)
            return false;
          else {
            $(".wrapper img").attr("src", prev);
            Img = prev;
          }
        });

        $(".next-image").bind('click', function() {
          var next = $(".image-container").find("img[src='" + Img + "']").parent().next('a').find("img").attr('src');
          if (!next || next.length === 0)
            return false;
          else {
            $(".wrapper img").attr("src", next);
            Img = next;
          }
        });

        $(".close").bind('click', function() {
          $(this).siblings("img").attr("src", "")
            .closest(".wrapper").remove();
          $(".bg").remove();
        });
      });
    }
  });
}; < /script>

@import url(http://fonts.googleapis.com/css?family=Varela+Round);
 #nav {
  float: left;
  width: 20px;
  margin: 10px 10px 20px 0px;
}
#nav,
#nav ul {
  list-style: none;
  padding: 0;
}
#nav a {
  position: relative;
  display: block;
  width: 105px;
  padding-left: 10px;
  margin: 3px 0;
  text-decoration: none;
  font-family: Geneva, Arial, Helvetica, sans-serif;
  font-variant: small-caps;
  font-weight: bold;
  color: #fff;
}
#nav a:link,
#nav a:visited {
  border-left: #00425E solid 10px;
  color: #fff;
}
#nav a:hover,
#nav a:active {
  border-left-color: #fff;
  background-color: #770709;
  color: #fff;
}
#nav a#here {
  border-left-color: #fff;
  background-color: transparent;
  color: #fff;
}
#nav ul {
  margin-left: 20px;
}
#nav ul a {
  width: 50px;
  color: #fff;
}
.image-container {
  padding-top: 50px;
}
.image-container img {
  background-color: white;
  border: 4px solid #444;
  box-shadow: 0 0 5px #222;
  padding: 3px;
  margin-top: 10px;
  height: auto;
  width: auto;
  max-width: 100px;
  max-height: 100px;
  transition: all .7s ease-in-out;
}
.image-container img:hover {
  border: 4px solid #888;
  cursor: zoom-in;
}
.bg {
  background-color: #333;
  filter: alpha(opacity=70);
  left: 0;
  opacity: 0.7;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}
.wrapper {
  background-color: white;
  border: 3px solid #444;
  box-shadow: 0 0 5px #222;
  padding: 3px;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1001;
}
.wrapper .next-image {
  position: absolute;
  font-size: 2.8em;
  top: 50%;
  color: #999;
  width: 45px;
  line-height: 30px;
  text-align: center;
  height: 45px;
  border-radius: 100%;
  opacity: 0.7;
  filter: alpha(opacity=40);
  /* For IE8 and earlier */
  right: 10px;
  left: auto;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.wrapper .prev-image {
  position: absolute;
  font-size: 2.8em;
  top: 50%;
  color: #999;
  width: 45px;
  line-height: 30px;
  text-align: center;
  height: 45px;
  border-radius: 100%;
  opacity: 0.7;
  filter: alpha(opacity=40);
  /* For IE8 and earlier */
  left: 10px;
  right: auto;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.wrapper .prev-image:hover {
  border: 2px solid #ccc;
  cursor: pointer;
  opacity: 1;
}
.wrapper .next-image:hover {
  border: 2px solid #ccc;
  cursor: pointer;
  opacity: 1;
}
.close {
  background: transparent url(../gallery/close.png) no-repeat;
  height: 32px;
  position: absolute;
  right: -16px;
  text-indent: -9999px;
  top: -16px;
  width: 32px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="content-container" style="height: 600px;">
  <div id="content" style="height: 600px;">
    <div style="float: left; width: 200px;">
      <h1> <span>The Gallery</span> </h1>
      <ul id="nav">
        <li><a href="" id="here">Gallery</a>
          <ul>
            <li><a href="#" data-albumid="images/gallery/fld01/">2014</a>
            </li>
            <li><a href="#" data-albumid="images/gallery/fld02/">2014</a>
            </li>
            <li><a href="#" data-albumid="images/gallery/fld03/">2014</a>
            </li>
            <li><a href="#" data-albumid="images/gallery/fld04/">2015</a>
            </li>
            <li><a href="#" data-albumid="images/gallery/fld05/">2015</a>
            </li>
          </ul>
        </li>
        <li><a href="../index.html">Back to home</a>
        </li>
      </ul>
    </div>
    <div class="image-container">
      <strong><p>Select a menu option to display a list of thumb nails.</p></strong>
    </div>

    <div class="clear"></div>
  </div>
</div>

Answer 1

添加 LoadGallery($('a[data-albumid]:first').data('albumid')); 在你的 $(document).ready() 功能如下。 $('a[data-albumid]:first') 将选择具有 data-albumid 属性的第一个 a。希望这对您有所帮助。

$(document).ready(function () {
    LoadGallery($('a[data-albumid]:first').data('albumid'));

    $("a").click(function () {
        var dir_path = $(this).data("albumid");
        //var txt=$(this).text();
        //$(this).text(txt);
        LoadGallery(dir_path);
        return false;
    });
});