diff --git a/html/练习2.html b/html/练习2.html
deleted file mode 100644
index fe301f2..0000000
--- a/html/练习2.html
+++ /dev/null
@@ -1,41 +0,0 @@
-<!DOCTYPE html>
-<html lang="zh">
-    <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" />
-        <link rel="stylesheet" href="../style/common.css" />
-        <title>判断是否是闰年</title>
-    </script></head>
-    <body>
-        <h1>判断是否是闰年</h1>
-        <h2>作者: 赵海洋</h2>
-        <input type="text" id="year" placeholder="输入年份" />
-        <button onclick="check()">判断</button>
-        <script>
-            // 判断是否是闰年
-            function isleap(year) {
-                if (year == 0) return '没有公元0年'
-                if (year < 0) return '不支持公元前的年份'
-                if (!year.match(/\d+/)) return '年份格式不正确'  
-                if (!year.match(/\d+/)) return ''
-                return (
-                    (year / 4 == Math.floor(year / 4) && year / 100 != Math.floor(year / 100)) ||
-                    (year / 400 == Math.floor(year / 400) && year / 3200 != Math.floor(year / 3200)) ||
-                    year / 172800 == Math.floor(year / 172800)
-                )
-            }
-
-            function check() {
-                let result = isleap(year.value)
-                if (result === true) {
-                    alert('是闰年')
-                } else if (result === false) {
-                    alert('不是闰年')
-                } else {
-                    alert(result)
-                }
-            }
-        </script>
-        </body>
-        </html>
\ No newline at end of file
