修复头像和用户名bug,增加视频预览功能

Change-Id: I26087f826d29106a3db9428329946ff374c867bf
diff --git a/Merge/back_wzy/config.py b/Merge/back_wzy/config.py
index 6a9bf8c..0200846 100644
--- a/Merge/back_wzy/config.py
+++ b/Merge/back_wzy/config.py
@@ -9,4 +9,6 @@
         'SQLURL'
     )
     SQLALCHEMY_TRACK_MODIFICATIONS = False
-    SQLURL = os.getenv('SQLURL')
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+    SQLURL = os.getenv('SQLURL')
+    # 文件上传配置
+    MAX_CONTENT_LENGTH = 2 * 1024 * 1024 * 1024  # 2GB,支持视频上传
\ No newline at end of file