diff --git "a/41\350\203\241\345\237\272\350\200\200/11.23/.keep" "b/41\350\203\241\345\237\272\350\200\200/11.23/.keep"
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git "a/41\350\203\241\345\237\272\350\200\200/11.23/11.23/\344\275\234\344\270\232.html" "b/41\350\203\241\345\237\272\350\200\200/11.23/11.23/\344\275\234\344\270\232.html"
new file mode 100644
index 0000000000000000000000000000000000000000..d432376d4af3b7c0fb3ca88ee42f4f9be8bc9e00
--- /dev/null
+++ "b/41\350\203\241\345\237\272\350\200\200/11.23/11.23/\344\275\234\344\270\232.html"
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    <div>
+        <button onclick="clickFn()" ondblclick="dblclickFn()">点击</button>
+    </div>
+    <script>
+                function dblclickFn() {
+            clearTimeout(timer)
+            alert('双击4班');
+        }
+         let timer = null
+        function clickFn() {
+            clearTimeout(timer)
+            timer = setTimeout(function (){
+                alert('单机2班');
+            },500)
+        }
+        </script>
+</body>
+</html>
\ No newline at end of file
diff --git "a/41\350\203\241\345\237\272\350\200\200/11.23/11.23/\347\254\224\350\256\260.md" "b/41\350\203\241\345\237\272\350\200\200/11.23/11.23/\347\254\224\350\256\260.md"
new file mode 100644
index 0000000000000000000000000000000000000000..a1cbe2eb1b16ddfe84288ea58e21043f729580ed
--- /dev/null
+++ "b/41\350\203\241\345\237\272\350\200\200/11.23/11.23/\347\254\224\350\256\260.md"
@@ -0,0 +1,5 @@
+js笔记
+DMO 有多个同类型事件触发时，只会触发一个 ，兼容性高
+DOM 2 :当有多个同类型事件触发时，会依次触发， 兼容性差
+事件取消
+btn.removeEventListener('click',fn);
\ No newline at end of file
