diff --git a/script/circle_down.lua b/script/circle_down.lua
new file mode 100644
index 0000000..8d3f714
--- /dev/null
+++ b/script/circle_down.lua
@@ -0,0 +1,83 @@
+-- 定义基础URL
+local base_url = "https://www.xxx.com"
+
+-- 函数：验证输入是否合法
+local function validate_input(input)
+    local a, b = input:match("^(%d+),(%d+)$")
+    if a and b then
+        a = tonumber(a)
+        b = tonumber(b)
+        if a <= b then
+            return a, b
+        end
+    end
+    return nil
+end
+
+-- 函数：拼接URL列表
+local function generate_urls(a, b)
+    local urls = {}
+    for i = a, b do
+        table.insert(urls, base_url .. "/" .. i)
+    end
+    return urls
+end
+
+-- 函数：执行URL并处理失败情况
+local function execute_urls(urls)
+    local failed_urls = {}
+    for _, url in ipairs(urls) do
+        local success = os.execute("curl -I " .. url) -- 使用curl命令检查URL是否可访问
+        if not success then
+            print("执行失败: " .. url)
+            io.write("是否重试? (y/n): ")
+            local retry = io.read()
+            if retry == "y" then
+                success = os.execute("curl -I " .. url)
+                if not success then
+                    table.insert(failed_urls, url)
+                end
+            else
+                table.insert(failed_urls, url)
+            end
+        end
+    end
+    return failed_urls
+end
+
+-- 函数：将失败的URL保存到文件
+local function save_failed_urls(failed_urls)
+    if #failed_urls > 0 then
+        local file = io.open("failed_urls.txt", "w")
+        if file then
+            for _, url in ipairs(failed_urls) do
+                file:write(url .. "\n")
+            end
+            file:close()
+            print("失败的URL已保存到 failed_urls.txt")
+        else
+            print("打开文件失败。")
+        end
+    else
+        print("所有URL执行成功，没有失败的URL。")
+    end
+end
+
+-- 主程序
+while true do
+    io.write("请输入起始数字a和终止数字b（格式为a,b）或输入re重新开始: ")
+    local input = io.read()
+    if input == "re" then
+        print("重新开始...")
+    else
+        local a, b = validate_input(input)
+        if a and b then
+            local urls = generate_urls(a, b)
+            local failed_urls = execute_urls(urls)
+            save_failed_urls(failed_urls)
+            break
+        else
+            print("输入格式不正确或a > b，请重新输入。")
+        end
+    end
+end