From b43f6f54c9bff9bcc626563b903a5f027d6528b2 Mon Sep 17 00:00:00 2001
From: LiuJiaNan <15703339975@163.com>
Date: Tue, 18 Nov 2025 14:05:04 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96base642File?=
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---
 utils/index.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/utils/index.js b/utils/index.js
index bfc6421..22dcee6 100644
--- a/utils/index.js
+++ b/utils/index.js
@@ -64,9 +64,10 @@ export function image2Base642(file) {
 /**
  base64转File对象
  */
-export function base642File(base64, filename = "file") {
+export function base642File(base64, filename = 'file') {
   const arr = base64.split(",");
   const mime = arr[0].match(/:(.*?);/)[1];
+  const ext = mime.split('/')[1];
   const bstr = atob(arr[1]);
   let n = bstr.length;
   const u8arr = new Uint8Array(n);
@@ -75,7 +76,7 @@ export function base642File(base64, filename = "file") {
     u8arr[n] = bstr.charCodeAt(n);
   }
 
-  return new File([u8arr], filename, { type: mime });
+  return new File([u8arr], `${filename}.${ext}`, { type: mime });
 }
 
 /**