v1.0.6: 导入网址文件增加追加/覆盖处理方式选择(默认追加)

static/app.js

@@ -174,10 +174,12 @@ async function readFileSmart(file) {
   return text;
 }
 
-function importUrlsText(text) {
+function importUrlsText(text, mode) {
   const ta = $("taskForm").elements["urls"];
   const clean = (s) => s.split(" #")[0].trim();     // 去掉行内注释 (URL 不含空格, 安全)
-  const existing = new Set(ta.value.split(/\r?\n/).map(clean).filter(Boolean));
+  const existing = new Set(
+    mode === "overwrite" ? [] : ta.value.split(/\r?\n/).map(clean).filter(Boolean)
+  );
   const fresh = text.split(/\r?\n/).map(clean).filter(Boolean);
   let added = 0;
   for (const line of fresh) {
@@ -198,9 +200,14 @@ $("urlFileInput").onchange = async (e) => {
   }
   try {
     const text = await readFileSmart(file);
-    const r = importUrlsText(text);
+    const mode = $("importMode").value;
+    const r = importUrlsText(text, mode);
     formDirty = true;
-    toast(`已导入 ${file.name}：共 ${r.total} 行，新增 ${r.added} 条网址`);
+    if (mode === "overwrite") {
+      toast(`已导入 ${file.name}：共 ${r.total} 行（覆盖原列表，新增 ${r.added} 条）`);
+    } else {
+      toast(`已导入 ${file.name}：共 ${r.total} 行，新增 ${r.added} 条网址（追加）`);
+    }
   } catch (err) {
     toast("文件读取失败: " + err.message, true);
   }

static/index.html

@@ -77,7 +77,11 @@
           <label>网址列表（每行一个，# 开头为注释）</label>
           <div class="row2" style="align-items:center">
             <button type="button" class="btn sm" id="btnImportUrls">📂 导入网址文件(.txt)</button>
-            <span class="card-line">支持 UTF-8 / GBK 编码，自动去重追加</span>
+            <select id="importMode" title="对已有网址的处理方式">
+              <option value="append" selected>追加（保留已有）</option>
+              <option value="overwrite">覆盖（清空已有）</option>
+            </select>
+            <span class="card-line">支持 UTF-8 / GBK，自动去重</span>
             <input type="file" id="urlFileInput" accept=".txt,.csv,.urls,text/plain" hidden>
           </div>
           <textarea name="urls" rows="5" placeholder="https://www.example.com/&#10;https://www.example.com/page2"></textarea>