修改连线题存在的bug

src/components/Adult/preview/Ligature.vue

@@ -536,11 +536,16 @@ export default {
                   flag = false;
                 }
               } else {
-                flag = false;
+                // flag = false;
               }
             }
           } else {
-            flag = false;
+            if (
+              Object.prototype.toString.call(item.answer).indexOf("Number") !=
+              -1
+            ) {
+              flag = false;
+            }
           }
         });
       });