fix: 首页TTS同样改用blob播放，解决downloadFile导致页面刷新的问题

uni-app/src/pages/index/index.vue

@@ -487,12 +487,39 @@ const playTryResult = () => {
   const hasChinese = /[\u4e00-\u9fa5]/.test(tryText.value)
   const lang = hasChinese ? 'en' : 'zh'
   const token = uni.getStorageSync('token')
-  const url = `${BASE_URL}/translate/tts?text=${encodeURIComponent(tryResult.value)}&lang=${lang}`
+  const text = tryResult.value
 
   uni.showLoading({ title: '语音生成中...' })
+
+  if (typeof window !== 'undefined' && window.Audio) {
+    uni.request({
+      url: `${BASE_URL}/translate/tts?text=${encodeURIComponent(text)}&lang=${lang}`,
+      method: 'GET',
+      header: { Authorization: `Bearer ${token}` },
+      responseType: 'arraybuffer',
+      success: (res) => {
+        uni.hideLoading()
+        if (res.statusCode === 200 && res.data) {
+          const blob = new Blob([res.data], { type: 'audio/mpeg' })
+          const url = URL.createObjectURL(blob)
+          const audio = new Audio(url)
+          audio.onended = () => { URL.revokeObjectURL(url) }
+          audio.play().catch(() => {
+            uni.showToast({ title: '播放失败，请检查音量', icon: 'none' })
+          })
+        } else {
+          uni.showToast({ title: '语音生成失败', icon: 'none' })
+        }
+      },
+      fail: () => {
+        uni.hideLoading()
+        uni.showToast({ title: '语音生成失败', icon: 'none' })
+      },
+    })
+  } else {
     uni.downloadFile({
-    url,
-    header: token ? { Authorization: `Bearer ${token}` } : {},
+      url: `${BASE_URL}/translate/tts?text=${encodeURIComponent(text)}&lang=${lang}`,
+      header: { Authorization: `Bearer ${token}` },
       success: (res) => {
         uni.hideLoading()
         if (res.statusCode === 200) {
@@ -509,6 +536,7 @@ const playTryResult = () => {
         uni.showToast({ title: '语音生成失败', icon: 'none' })
       },
     })
+  }
 }
 </script>