diff --git a/app/store/mask.ts b/app/store/mask.ts
index dfd4089b757..4befeeef556 100644
--- a/app/store/mask.ts
+++ b/app/store/mask.ts
@@ -45,6 +45,27 @@ export const useMaskStore = createPersistStore(
   (set, get) => ({
     create(mask?: Partial<Mask>) {
       const masks = get().masks;
+      // 检查要导入的项目是否重复
+      for (let existingMask of Object.values(masks)) {
+        if (existingMask.name === mask?.name) {
+          if (
+            JSON.stringify(existingMask.context) ===
+            JSON.stringify(mask?.context)
+          ) {
+            console.log(
+              "A mask with the same name and context already exists.",
+            );
+            return existingMask;
+          } else {
+            // 只有name重复，给name加上今天的日期和时间
+            let now = new Date();
+            let year = String(now.getFullYear()).slice(-2); // 获取年份的最后两位
+            mask.name = `${mask.name}@${year}-${
+              now.getMonth() + 1
+            }-${now.getDate()}@${now.getHours()}:${now.getMinutes()}`;
+          }
+        }
+      }
       const id = nanoid();
       masks[id] = {
         ...createEmptyMask(),
diff --git a/app/utils.ts b/app/utils.ts
index ac7e80e7afd..e41dfa1fddd 100644
--- a/app/utils.ts
+++ b/app/utils.ts
@@ -6,7 +6,9 @@ export function trimTopic(topic: string) {
   // Fix an issue where double quotes still show in the Indonesian language
   // This will remove the specified punctuation from the end of the string
   // and also trim quotes from both the start and end if they exist.
-  return topic.replace(/^["“”]+|["“”]+$/g, "").replace(/[，。！？”“"、,.!?]*$/, "");
+  return topic
+    .replace(/^["“”]+|["“”]+$/g, "")
+    .replace(/[，。！？”“"、,.!?]*$/, "");
 }
 
 export async function copyToClipboard(text: string) {
@@ -40,8 +42,8 @@ export async function downloadAs(text: string, filename: string) {
       defaultPath: `${filename}`,
       filters: [
         {
-          name: `${filename.split('.').pop()} files`,
-          extensions: [`${filename.split('.').pop()}`],
+          name: `${filename.split(".").pop()} files`,
+          extensions: [`${filename.split(".").pop()}`],
         },
         {
           name: "All Files",
@@ -52,10 +54,14 @@ export async function downloadAs(text: string, filename: string) {
 
     if (result !== null) {
       try {
-        await window.__TAURI__.fs.writeBinaryFile(
-          result,
-          new Uint8Array([...text].map((c) => c.charCodeAt(0)))
-        );
+        // await window.__TAURI__.fs.writeBinaryFile(
+        //     result,
+        //     new Uint8Array([...text].map((c) => c.charCodeAt(0)))
+        // );
+        // 修复客户端导出json时的乱码现象
+        const encoder = new TextEncoder();
+        const data = encoder.encode(text);
+        await window.__TAURI__.fs.writeBinaryFile(result, new Uint8Array(data));
         showToast(Locale.Download.Success);
       } catch (error) {
         showToast(Locale.Download.Failed);
@@ -69,15 +75,15 @@ export async function downloadAs(text: string, filename: string) {
       "href",
       "data:text/plain;charset=utf-8," + encodeURIComponent(text),
     );
-  element.setAttribute("download", filename);
+    element.setAttribute("download", filename);
 
-  element.style.display = "none";
-  document.body.appendChild(element);
+    element.style.display = "none";
+    document.body.appendChild(element);
 
-  element.click();
+    element.click();
 
-  document.body.removeChild(element);
-}
+    document.body.removeChild(element);
+  }
 }
 export function readFromFile() {
   return new Promise<string>((res, rej) => {
@@ -212,8 +218,8 @@ export function getCSSVar(varName: string) {
 export function isMacOS(): boolean {
   if (typeof window !== "undefined") {
     let userAgent = window.navigator.userAgent.toLocaleLowerCase();
-    const macintosh = /iphone|ipad|ipod|macintosh/.test(userAgent)
-    return !!macintosh
+    const macintosh = /iphone|ipad|ipod|macintosh/.test(userAgent);
+    return !!macintosh;
   }
-  return false
+  return false;
 }