配置

XFFruit/Images.xcassets/Survey/Contents.json

+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file

XFFruit/Images.xcassets/Survey/add.imageset/Contents.json

-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "scale" : "1x",
-      "filename" : "add.png"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "2x",
-      "filename" : "add@2x.png"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file