diff --git a/src/layer/index.js b/src/layer/index.js
index 6afb69a..9e41a82 100644
--- a/src/layer/index.js
+++ b/src/layer/index.js
@@ -4,7 +4,15 @@
  * @date 2023/03/06 15:17:25
  */
 
-import { css, html, Component, nextTick, styleMap } from '@bd/core'
+import {
+  css,
+  html,
+  Component,
+  bind,
+  unbind,
+  nextTick,
+  styleMap
+} from '@bd/core'
 import '../form/input.js'
 import Drag from '../drag/core.js'
 
@@ -253,7 +261,41 @@ class Layer extends Component {
   #wrapped = null
   #dragIns = null
 
+  #resolve = null
+  #reject = null
+
+  constructor() {
+    super()
+
+    this.promise = new Promise((resolve, reject) => {
+      this.#resolve = resolve
+      this.#reject = reject
+    })
+
+    this.promise.host = this
+  }
+
+  #intercept(value) {
+    if (this.intercept) {
+      this.intercept(value, _ => {
+        delete this.intercept
+        this.#resolve(value)
+        this.$refs.box.$animate(true).then(_ => this.close())
+      })
+    } else {
+      this.#resolve(value)
+      this.$refs.box.$animate(true).then(_ => this.close())
+    }
+  }
+
   mounted() {
+    if (this.type === 'prompt') {
+      this.$refs.input = this.firstElementChild
+      bind(this.$refs.input, 'submit', ev => {
+        this.#intercept(ev.target.value)
+      })
+    }
+
     this.$refs.box.$animate()
   }
 
@@ -300,12 +342,32 @@ class Layer extends Component {
     }
   }
 
+  // 按钮的点击事件
   handleBtnClick(ev) {
-    //
     if (ev.target.tagName === 'BUTTON') {
       let idx = +ev.target.dataset.idx
 
-      this.$refs.box.$animate(true).then(_ => this.close())
+      switch (this.type) {
+        case 'alert':
+          this.$refs.box.$animate(true).then(_ => this.close())
+          break
+
+        case 'confirm':
+        case 'prompt':
+          if (idx === 0) {
+            this.#reject()
+            this.$refs.box.$animate(true).then(_ => this.close())
+          } else {
+            let value = this.type === 'prompt' ? this.$refs.input.value : null
+            this.#intercept(value)
+          }
+          break
+
+        default:
+          // 其他类型, 如有按钮, 直接交给拦截器处理
+          this.#intercept(idx)
+          break
+      }
     }
   }