diff --git a/static/public/css/theme.css b/static/public/css/theme.css
index f84384f..786dcf3 100644
--- a/static/public/css/theme.css
+++ b/static/public/css/theme.css
@@ -155,6 +155,13 @@ button[type="button"], input[type="button"] { background: var(--accent-soft); co
     flex-wrap: wrap;
     margin-top: 1.25rem;
 }
+/* ===== 防重复点击：请求进行中按钮禁用态反馈 ===== */
+button:disabled,
+input[type="submit"]:disabled,
+input[type="button"]:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
 .form-check {
     display: flex;
     align-items: center;
diff --git a/static/public/js/dnfs.js b/static/public/js/dnfs.js
index 0af3b5f..3bd0609 100644
--- a/static/public/js/dnfs.js
+++ b/static/public/js/dnfs.js
@@ -191,14 +191,15 @@ var minimap = document.getElementById("minimap");
 var is_expand = true;
 
 input_note_submit.addEventListener('click', function(event) {
+	if (input_note_submit.disabled) return;	// 防重复点击
 	var title = input_note_title.value
 	var content = input_note_content.value
 	var pid = (stack.length == 0) ? 0 : stack[stack.length - 1];
 	//alert(stack.length)
 	//alert(pid)
-	addNode(pid, title, content).then(result => {
-		//alert(result.message);
-	})
+	input_note_submit.disabled = true;
+	addNode(pid, title, content)
+		.finally(() => { input_note_submit.disabled = false; });
 })
 
 input_note_clear.addEventListener('click', function(event) {
@@ -207,13 +208,17 @@ input_note_clear.addEventListener('click', function(event) {
 })
 
 delete_note.addEventListener('click', (event) => {
+	if (delete_note.disabled) return;	// 防重复点击
 	var id = (stack.length == 0) ? 0 : stack[stack.length - 1];
 	if (id == 0) {
 		alert('无法删除根节点');
 		console.log("节点未删除");
 	}
 	else {
-		deleteNode(id);
+		delete_note.disabled = true;
+		// confirm 取消时 deleteNode 直接返回 undefined，统一用 Promise.resolve 兜底恢复按钮
+		Promise.resolve(deleteNode(id))
+			.finally(() => { delete_note.disabled = false; });
 	}
 })
 
diff --git a/static/public/js/login.js b/static/public/js/login.js
index 8690405..fc3b7dc 100644
--- a/static/public/js/login.js
+++ b/static/public/js/login.js
@@ -14,8 +14,11 @@ const loginButton = document.getElementById('loginBtn');
 
 /* ── 图形验证码（gateway 代理 captcha 服务：GET /captcha/image） ── */
 let captchaToken = '';
+let captchaLoading = false;	// 防重复点击：加载中忽略再次触发
 
 async function refreshCaptcha() {
+	if (captchaLoading) return;
+	captchaLoading = true;
 	captchaToken = '';
 	try {
 		const res = await fetch('/captcha/image', { cache: 'no-store' });
@@ -28,6 +31,8 @@ async function refreshCaptcha() {
 	} catch (e) {
 		captchaImg.removeAttribute('src');
 		captchaImg.alt = '加载失败，点击重试';
+	} finally {
+		captchaLoading = false;
 	}
 }
 captchaImg.addEventListener('click', refreshCaptcha);
diff --git a/static/public/js/view.js b/static/public/js/view.js
index 41240a1..f42723e 100644
--- a/static/public/js/view.js
+++ b/static/public/js/view.js
@@ -127,7 +127,10 @@ function render() {
 }
 
 // ===== 数据拉取（接口与参数与原版本一致） =====
+let isLoading = false;	// 防重复点击：请求进行中忽略再次触发
 async function loadData() {
+    if (isLoading) return;
+    isLoading = true;
     loading.style.display = "block";
     fileList.innerHTML = "";
     empty.style.display = "none";
@@ -145,6 +148,8 @@ async function loadData() {
     } catch (e) {
         fileList.innerHTML = `<div class="error">❌ 加载失败: ${esc(e.message)}</div>`;
         loading.style.display = "none";
+    } finally {
+        isLoading = false;
     }
 }
 
@@ -173,7 +178,10 @@ document.addEventListener("keydown", function (e) {
     }
 });
 
-btnRefresh.addEventListener("click", loadData);
+btnRefresh.addEventListener("click", function (e) {
+    e.preventDefault();	// <a href="#"> 默认会跳页顶，拦截
+    loadData();
+});
 
 // ===== 启动 =====
 renderBreadcrumb();