创建带有下一页/上一页链接的全屏div

#fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #f1f1f1;
  font-family: Arial, sans-serif;
}

var currentPage = 1; // 当前页数

function nextPage() {
  currentPage++;
  updateContent();
}

function prevPage() {
  if (currentPage > 1) {
    currentPage--;
    updateContent();
  }
}

function updateContent() {
  var fullscreenDiv = document.getElementById("fullscreen");
  fullscreenDiv.innerHTML = "当前页数：" + currentPage;
  // 在这里根据需要更新div的内容，可以插入图片、文字等
}

<div id="fullscreen">
  <a href="javascript:prevPage()">上一页</a>
  <a href="javascript:nextPage()">下一页</a>
</div>