Merge branch 'ol_12_30' into test

src/constant/index.js

@@ -334,5 +334,6 @@ export const backType = {
   VIP:'VIP退学',
   PRACTICE :'网管课关闭',
   MUSIC :'乐团退团',
-  GOODS:'商品退费'
+  GOODS:'商品退费',
+  SUBJECT_CHANGE:'声部更换'
 }