update:加入参数limit限制大小

src/components/upload/avatar.vue

@@ -58,7 +58,18 @@ export default {
       type: String,
       default: '/api-marketing/upload-game-image'
     },
-    labelStyle: Object
+    labelStyle: Object,
+    // 限制图片大小
+    limit: {
+      type: Object,
+      default() {
+        return {
+          type: false,
+          width: 100,
+          height: 100
+        };
+      }
+    }
   },
   data() {
     return {