From 846f99b7bf35f323c6a76ab20c4e59224e6a622a Mon Sep 17 00:00:00 2001
From: ChenX <maple6@vip.qq.com>
Date: Thu, 24 Oct 2019 17:40:55 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E9=80=89=E6=8B=A9=E6=96=87?=
 =?UTF-8?q?=E4=BB=B6API=E9=94=99=E8=AF=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/Common/FileSystem.ts | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/Common/FileSystem.ts b/src/Common/FileSystem.ts
index 275005362..5bc79e1af 100644
--- a/src/Common/FileSystem.ts
+++ b/src/Common/FileSystem.ts
@@ -358,13 +358,13 @@ export class FileSystem
      */
     static ChooseFile({ filter, multiple = false, callback }: { filter?: string; multiple?: boolean; callback: (filelist: FileList) => void; })
     {
-        if (!this.chooserInput)
-        {
-            this.chooserInput = document.createElement("input");
-            this.chooserInput.type = "file";
-            this.chooserInput.style.display = "none";
-            document.body.appendChild(this.chooserInput);
-        }
+        if (this.chooserInput)
+            this.chooserInput.remove();
+
+        this.chooserInput = document.createElement("input");
+        this.chooserInput.type = "file";
+        this.chooserInput.style.display = "none";
+        document.body.appendChild(this.chooserInput);
 
         this.chooserInput.accept = filter;
         this.chooserInput.onchange = () =>