diff --git a/leave-school-vue/src/directive/el-dragDialog/drag.js b/leave-school-vue/src/directive/el-dragDialog/drag.js
new file mode 100644
index 0000000..68e0852
--- /dev/null
+++ b/leave-school-vue/src/directive/el-dragDialog/drag.js
@@ -0,0 +1,77 @@
+export default{
+  bind(el, binding, vnode) {
+    const dialogHeaderEl = el.querySelector('.el-dialog__header')
+    const dragDom = el.querySelector('.el-dialog')
+    dialogHeaderEl.style.cssText += ';cursor:move;'
+    dragDom.style.cssText += ';top:0px;'
+
+    // 获取原有属性 ie dom元素.currentStyle 火狐谷歌 window.getComputedStyle(dom元素, null);
+    const getStyle = (function() {
+      if (window.document.currentStyle) {
+        return (dom, attr) => dom.currentStyle[attr]
+      } else {
+        return (dom, attr) => getComputedStyle(dom, false)[attr]
+      }
+    })()
+
+    dialogHeaderEl.onmousedown = (e) => {
+      // 鼠标按下，计算当前元素距离可视区的距离
+      const disX = e.clientX - dialogHeaderEl.offsetLeft
+      const disY = e.clientY - dialogHeaderEl.offsetTop
+
+      const dragDomWidth = dragDom.offsetWidth
+      const dragDomheight = dragDom.offsetHeight
+
+      const screenWidth = document.body.clientWidth
+      const screenHeight = document.body.clientHeight
+
+      const minDragDomLeft = dragDom.offsetLeft
+      const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth
+
+      const minDragDomTop = dragDom.offsetTop
+      const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight
+
+      // 获取到的值带px 正则匹配替换
+      let styL = getStyle(dragDom, 'left')
+      let styT = getStyle(dragDom, 'top')
+
+      if (styL.includes('%')) {
+        styL = +document.body.clientWidth * (+styL.replace(/\%/g, '') / 100)
+        styT = +document.body.clientHeight * (+styT.replace(/\%/g, '') / 100)
+      } else {
+        styL = +styL.replace(/\px/g, '')
+        styT = +styT.replace(/\px/g, '')
+      }
+
+      document.onmousemove = function(e) {
+        // 通过事件委托，计算移动的距离
+        let left = e.clientX - disX
+        let top = e.clientY - disY
+
+        // 边界处理
+        if (-(left) > minDragDomLeft) {
+          left = -minDragDomLeft
+        } else if (left > maxDragDomLeft) {
+          left = maxDragDomLeft
+        }
+
+        if (-(top) > minDragDomTop) {
+          top = -minDragDomTop
+        } else if (top > maxDragDomTop) {
+          top = maxDragDomTop
+        }
+
+        // 移动当前元素
+        dragDom.style.cssText += `;left:${left + styL}px;top:${top + styT}px;`
+
+        // emit onDrag event
+        vnode.child.$emit('dragDialog')
+      }
+
+      document.onmouseup = function(e) {
+        document.onmousemove = null
+        document.onmouseup = null
+      }
+    }
+  }
+}
diff --git a/leave-school-vue/src/directive/el-dragDialog/index.js b/leave-school-vue/src/directive/el-dragDialog/index.js
new file mode 100644
index 0000000..29facbf
--- /dev/null
+++ b/leave-school-vue/src/directive/el-dragDialog/index.js
@@ -0,0 +1,13 @@
+import drag from './drag'
+
+const install = function(Vue) {
+  Vue.directive('el-drag-dialog', drag)
+}
+
+if (window.Vue) {
+  window['el-drag-dialog'] = drag
+  Vue.use(install); // eslint-disable-line
+}
+
+drag.install = install
+export default drag