body.style.cursor

body.style.cursor 用于设置或获取指针在元素上的形状。可以通过设置不同的值来改变鼠标指针的样式。

例如，可以使用以下代码将鼠标指针的形状设置为手型：

document.body.style.cursor = "pointer";

在这个例子中，当鼠标悬停在 body 元素上时，鼠标指针将显示为手型。

如果要将鼠标指针恢复为默认样式，可以将属性值设置为空字符串或设置为 "auto"：

document.body.style.cursor = "";
// 或者
document.body.style.cursor = "auto";

这样，鼠标指针将显示为浏览器的默认样式。

相关问题

上面你提供的代码需要怎么添加到function showPopup(src) { isPopupVisible = true; // 设置悬浮窗显示状态为true var overlay = document.createElement("div"); overlay.style.position = "fixed"; overlay.style.top = "0"; overlay.style.left = "0"; overlay.style.width = "100%"; overlay.style.height = "100%"; overlay.style.backgroundColor = "rgba(0, 0, 0, 0.8)"; overlay.style.zIndex = "9998"; // 设置遮罩层的z-index低于悬浮窗，但高于其他元素 document.body.appendChild(overlay); var popup = document.createElement("div"); popup.style.position = "fixed"; popup.style.top = "50%"; popup.style.left = "50%"; popup.style.transform = "translate(-50%, -50%)"; popup.style.backgroundColor = "rgba(0, 0, 0, 0.8)"; popup.style.zIndex = "9999"; popup.style.width = "75%"; // 设置悬浮窗宽度为页面宽度的75% popup.style.height = "75%"; // 设置悬浮窗高度为页面高度的75% popup.style.overflow = "hidden"; var imgContainer = document.createElement("div"); imgContainer.style.display = "flex"; imgContainer.style.justifyContent = "center"; imgContainer.style.alignItems = "center"; imgContainer.style.backgroundColor = "transparent"; imgContainer.style.width = "100%"; imgContainer.style.height = "100%"; var img = document.createElement("img"); img.src = src; img.alt = "放大照片"; img.style.maxWidth = "100%"; img.style.maxHeight = "100%"; var scale = 1; // 初始缩放比例 var scaleFactor = 0.1; // 每次滚动的缩放因子 // 点击图片放大/缩小 img.onclick = function () { scale += 0.1; img.style.transform = "scale(" + scale + ")"; }; // 鼠标滚轮事件 popup.onwheel = function (e) { e.preventDefault(); // 阻止默认滚轮行为处理页面滚动 scale += e.deltaY > 0 ? -scaleFactor : scaleFactor; // 根据滚轮滚动方向确定缩放比例 scale = Math.max(scale, 0.1); // 最小缩放比例为0.1 img.style.transform = "scale(" + scale + ")"; }; overlay.onclick = function () { document.body.removeChild(popup); document.body.removeChild(overlay); isPopupVisible = false; // 设置悬浮窗显示状态为false }; imgContainer.appendChild(img); popup.appendChild(imgContainer); document.body.appendChild(popup); }

您可以将我之前提供的代码添加到您的`showPopup`函数中的适当位置。具体来说，您可以将代码添加到创建`img`元素后，即在以下代码之后：

var img = document.createElement("img");
img.src = src;
img.alt = "放大照片";
img.style.maxWidth = "100%";
img.style.maxHeight = "100%";

将我的代码添加到这段代码之后，以保持逻辑的连贯性。此外，请确保将我的代码添加到整个`showPopup`函数中的正确位置，以使其在适当的时机执行。

最终的代码应如下所示：

function showPopup(src) {
  isPopupVisible = true; // 设置悬浮窗显示状态为true
  var overlay = document.createElement("div");
  overlay.style.position = "fixed";
  overlay.style.top = "0";
  overlay.style.left = "0";
  overlay.style.width = "100%";
  overlay.style.height = "100%";
  overlay.style.backgroundColor = "rgba(0, 0, 0, 0.8)";
  overlay.style.zIndex = "9998"; // 设置遮罩层的z-index低于悬浮窗，但高于其他元素
  document.body.appendChild(overlay);

  var popup = document.createElement("div");
  popup.style.position = "fixed";
  popup.style.top = "50%";
  popup.style.left = "50%";
  popup.style.transform = "translate(-50%, -50%)";
  popup.style.backgroundColor = "rgba(0, 0, 0, 0.8)";
  popup.style.zIndex = "9999";
  popup.style.width = "75%"; // 设置悬浮窗宽度为页面宽度的75%
  popup.style.height = "75%"; // 设置悬浮窗高度为页面高度的75%
  popup.style.overflow = "hidden";

  var imgContainer = document.createElement("div");
  imgContainer.style.display = "flex";
  imgContainer.style.justifyContent = "center";
  imgContainer.style.alignItems = "center";
  imgContainer.style.backgroundColor = "transparent";
  imgContainer.style.width = "100%";
  imgContainer.style.height = "100%";

  var img = document.createElement("img");
  img.src = src;
  img.alt = "放大照片";
  img.style.maxWidth = "100%";
  img.style.maxHeight = "100%";
  
  // 添加我的代码开始
  var isDragging = false; // 判断是否正在拖动图片
  var startX, startY; // 记录鼠标开始拖动的位置
  var offsetX = 0, offsetY = 0; // 记录图片偏移量

  // 鼠标按下事件，开始拖动图片
  img.onmousedown = function (e) {
    isDragging = true;
    startX = e.clientX;
    startY = e.clientY;
    img.style.cursor = "grabbing";
  };

  // 鼠标移动事件，拖动图片
  img.onmousemove = function (e) {
    if (isDragging) {
      var deltaX = e.clientX - startX;
      var deltaY = e.clientY - startY;
      offsetX += deltaX;
      offsetY += deltaY;
      img.style.transform = "scale(" + scale + ") translate(" + offsetX + "px, " + offsetY + "px)";
      startX = e.clientX;
      startY = e.clientY;
    }
  };

  // 鼠标释放事件，停止拖动图片
  img.onmouseup = function () {
    isDragging = false;
    img.style.cursor = "grab";
  };

  // 鼠标离开事件，停止拖动图片
  img.onmouseleave = function () {
    isDragging = false;
    img.style.cursor = "grab";
  };

  // 设置鼠标样式为手掌状
  img.style.cursor = "grab";

  // 点击图片放大/缩小
  img.onclick = function () {
    scale += 0.1;
    img.style.transform = "scale(" + scale + ")";
  };

  // 鼠标滚轮事件
  popup.onwheel = function (e) {
    e.preventDefault(); // 阻止默认滚轮行为处理页面滚动

    scale += e.deltaY > 0 ? -scaleFactor : scaleFactor; // 根据滚轮滚动方向确定缩放比例
    scale = Math.max(scale, 0.1); // 最小缩放比例为0.1

    img.style.transform = "scale(" + scale + ")";
  };
  // 添加我的代码结束

  overlay.onclick = function () {
    document.body.removeChild(popup);
    document.body.removeChild(overlay);
    isPopupVisible = false; // 设置悬浮窗显示状态为false
  };
  
  imgContainer.appendChild(img);
  popup.appendChild(imgContainer);
  document.body.appendChild(popup);
}

请确保将代码添加到正确的位置，并与现有代码一起工作。希望这次能帮到您！如果还有其他问题，请随时提问。

请根据代码片段仿写实现div左下角拖拽移动用具体代码实现，import Vue from 'vue' Vue.directive('dialogZoomOut', { bind(el, binding, vnode, oldVnode) { let minWidth = 400;let minHeight = 300;let isFullScreen = false; let nowWidth = 0;let nowHight = 0;let nowMarginTop = 0;const dialogHeaderEl = el.querySelector('.el-dialog__header');const dragDom = el.querySelector('.el-dialog');dragDom.style.overflow = "auto";dialogHeaderEl.onselectstart = new Function("return false");dialogHeaderEl.style.cursor = 'move';const sty = dragDom.currentStyle || window.getComputedStyle(dragDom, null);let moveDown = (e) => {const disX = e.clientX - dialogHeaderEl.offsetLeft;const disY = e.clientY - dialogHeaderEl.offsetTop;let styL, styT;if (sty.left.includes('%')) {styL = +document.body.clientWidth * (+sty.left.replace(/%/g, '') / 100);styT = +document.body.clientHeight * (+sty.top.replace(/%/g, '') / 100);} else {styL = +sty.left.replace(/px/g, '');styT = +sty.top.replace(/px/g, '');};document.onmousemove = function (e) {const l = e.clientX - disX;const t = e.clientY - disY;dragDom.style.left = `${l + styL}px`;dragDom.style.top = `${t + styT}px`;};document.onmouseup = function (e) {document.onmousemove = null;document.onmouseup = null;};}dialogHeaderEl.onmousedown = moveDown;dialogHeaderEl.ondblclick = (e) => {if (isFullScreen == false) {nowHight = dragDom.clientHeight;nowWidth = dragDom.clientWidth;nowMarginTop = dragDom.style.marginTop;dragDom.style.left = 0;dragDom.style.top = 0;dragDom.style.height = "100VH";dragDom.style.width = "100VW";dragDom.style.marginTop = 0;isFullScreen = true;dialogHeaderEl.style.cursor = 'initial';dialogHeaderEl.onmousedown = null;} else {dragDom.style.height = "auto";dragDom.style.width = nowWidth + 'px';dragDom.style.marginTop = nowMarginTop;isFullScreen = false;dialogHeaderEl.style.cursor = 'move';dialogHeaderEl.onmousedown = moveDown;}}let resizeEl = document.createElement("div");dragDom.appendChild(resizeEl);resizeEl.style.cursor = 'se-resize';resizeEl.style.position = 'absolute';resizeEl.style.height = '10px';resizeEl.style.width = '10px';resizeEl.style.right = '0px';resizeEl.style.bottom = '0px';resizeEl.style.zIndex = '99';resizeEl.onmousedown = (e) => {let clientX = e.clientX;let disX = e.clientX - resizeEl.offsetLeft;let disY = e.clientY - resizeEl.offsetTop;document.onmousemove = function (e) {e.preventDefault(); let x = e.clientX - disX + (e.clientX - clientX);let y = e.clientY - disY;dragDom.style.width = x > minWidth ? `${x}px` : minWidth + 'px';dragDom.style.height = y > minHeight ? `${y}px` : minHeight + 'px';};document.onmouseup = function (e) {document.onmousemove = null;document.onmouseup = null;};}}})

以下是仿写的代码实现：

<template>
  <div class="dialog-wrapper" v-dialog-zoom-out>
    <div class="el-dialog">
      <div class="el-dialog__header">Dialog Title</div>
      <div class="el-dialog__body">Dialog Content</div>
      <div class="el-dialog__footer">
        <button @click="$emit('close')">Close</button>
      </div>
      <div class="el-dialog__resize"></div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Dialog",
};
</script>

<style>
.dialog-wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.el-dialog {
  position: absolute;
  top: 0;
  left: 0;
  overflow: auto;
  max-height: 80vh;
  background-color: #fff;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.el-dialog__header {
  padding: 16px;
  background-color: #f5f7fa;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  cursor: move;
}

.el-dialog__body {
  padding: 16px;
}

.el-dialog__footer {
  display: flex;
  justify-content: flex-end;
  padding: 16px;
  background-color: #f5f7fa;
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
}

.el-dialog__footer button {
  padding: 8px 16px;
  background-color: #fff;
  border: 1px solid #c1c1c1;
  border-radius: 4px;
  cursor: pointer;
}

.el-dialog__resize {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 10px;
  height: 10px;
  cursor: se-resize;
  background-color: #c1c1c1;
}
</style>

import Vue from "vue";

Vue.directive("dialogZoomOut", {
  bind(el, binding, vnode, oldVnode) {
    let minWidth = 400;
    let minHeight = 300;
    let isFullScreen = false;
    let nowWidth = 0;
    let nowHight = 0;
    let nowMarginTop = 0;
    const dialogHeaderEl = el.querySelector(".el-dialog__header");
    const dragDom = el.querySelector(".el-dialog");
    dragDom.style.overflow = "auto";
    dialogHeaderEl.onselectstart = new Function("return false");
    dialogHeaderEl.style.cursor = "move";
    const sty = dragDom.currentStyle || window.getComputedStyle(dragDom, null);
    let moveDown = (e) => {
      const disX = e.clientX - dialogHeaderEl.offsetLeft;
      const disY = e.clientY - dialogHeaderEl.offsetTop;
      let styL, styT;
      if (sty.left.includes("%")) {
        styL = +document.body.clientWidth * (+sty.left.replace(/%/g, "") / 100);
        styT = +document.body.clientHeight * (+sty.top.replace(/%/g, "") / 100);
      } else {
        styL = +sty.left.replace(/px/g, "");
        styT = +sty.top.replace(/px/g, "");
      }
      document.onmousemove = function (e) {
        const l = e.clientX - disX;
        const t = e.clientY - disY;
        dragDom.style.left = `${l + styL}px`;
        dragDom.style.top = `${t + styT}px`;
      };
      document.onmouseup = function (e) {
        document.onmousemove = null;
        document.onmouseup = null;
      };
    };
    dialogHeaderEl.onmousedown = moveDown;
    dialogHeaderEl.ondblclick = (e) => {
      if (isFullScreen == false) {
        nowHight = dragDom.clientHeight;
        nowWidth = dragDom.clientWidth;
        nowMarginTop = dragDom.style.marginTop;
        dragDom.style.left = 0;
        dragDom.style.top = 0;
        dragDom.style.height = "100VH";
        dragDom.style.width = "100VW";
        dragDom.style.marginTop = 0;
        isFullScreen = true;
        dialogHeaderEl.style.cursor = "initial";
        dialogHeaderEl.onmousedown = null;
      } else {
        dragDom.style.height = "auto";
        dragDom.style.width = nowWidth + "px";
        dragDom.style.marginTop = nowMarginTop;
        isFullScreen = false;
        dialogHeaderEl.style.cursor = "move";
        dialogHeaderEl.onmousedown = moveDown;
      }
    };
    let resizeEl = document.createElement("div");
    dragDom.appendChild(resizeEl);
    resizeEl.style.cursor = "se-resize";
    resizeEl.style.position = "absolute";
    resizeEl.style.height = "10px";
    resizeEl.style.width = "10px";
    resizeEl.style.right = "0px";
    resizeEl.style.bottom = "0px";
    resizeEl.style.zIndex = "99";
    resizeEl.onmousedown = (e) => {
      let clientX = e.clientX;
      let disX = e.clientX - resizeEl.offsetLeft;
      let disY = e.clientY - resizeEl.offsetTop;
      document.onmousemove = function (e) {
        e.preventDefault();
        let x = e.clientX - disX + (e.clientX - clientX);
        let y = e.clientY - disY;
        dragDom.style.width = x > minWidth ? `${x}px` : minWidth + "px";
        dragDom.style.height = y > minHeight ? `${y}px` : minHeight + "px";
      };
      document.onmouseup = function (e) {
        document.onmousemove = null;
        document.onmouseup = null;
      };
    };
  },
});

上述代码实现了一个类似于Element UI中的Dialog组件的拖拽和缩放功能。在使用时，只需要将 `v-dialog-zoom-out` 指令绑定到Dialog组件的容器元素上，即可实现拖拽和缩放功能。