修改UI

keyBoard/Assets.xcassets/Ohter/placeholder_image_icon.imageset/Contents.json

@@ -5,12 +5,12 @@
       "scale" : "1x"
     },
     {
-      "filename" : "placeholder_image_icon@2x.png",
+      "filename" : "切图 232@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "placeholder_image_icon@3x.png",
+      "filename" : "切图 232@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }