diff --git a/src/chat.js b/src/chat.js
index cb80650..ea630f2 100644
--- a/src/chat.js
+++ b/src/chat.js
@@ -21,14 +21,31 @@ export default class Chat {
                         boxSizing: 'border-box',
                         boxShadow: '0 0 1rem #eee',
                     },
-                    onkeydow1n: event => {
+                    onkeydown: event => {
                         const text = event.target.value.trim()
-                        if (text && event.key === 'Enter') {
+                        if (text && event.ctrlKey && event.key === 'Enter') {
                             this.发送消息(text)
                             event.target.value = ''
                         }
                     }
-                }, 'textarea')
+                }, 'textarea'),
+                Button({
+                    textContent: '发送(ctrl+Enter)',
+                    onclick: event => {
+                        const text = event.target.previousSibling.value.trim()
+                        if (text) {
+                            this.发送消息(text)
+                            event.target.previousSibling.value = ''
+                        }
+                    },
+                    style: {
+                        margin: '1rem 2rem',
+                        padding: '.5rem 1rem',
+                        boxSizing: 'border-box',
+                        boxShadow: '0 0 1rem #eee',
+                        borderRadius: '1rem',
+                    }
+                }),
             ]
         }))
         // 写入 css 样式到 head