fixed export error

data/1.Java初阶/2.第一个Java程序/1.编辑Java源代码/config.json

@@ -2,5 +2,5 @@
   "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
   "keywords": [],
   "children": [],
-  "export": []
+  "export": ["HelloWorld.json"]
 }
\ No newline at end of file

data/1.Java初阶/2.第一个Java程序/config.json

@@ -2,5 +2,5 @@
   "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
   "keywords": [],
   "children": [],
-  "export": ["HelloWorld.json"]
+  "export": []
 }
\ No newline at end of file