fix(form):fix the problem that the default behavior of enter keyboard operation when the input tag is under the form tag will cause the adjacent button to be triggered

src/Form/src/Form.vue

@@ -4,7 +4,8 @@
     :class="{
       'n-form--inline': inline
     }"
-    @submit="onSubmit"
+    @submit.prevent="onSubmit"
+    @keydown.enter.prevent="handleEnterKeyDown"
   >
     <slot />
   </form>
@@ -113,6 +114,11 @@ export default {
           formItemInstance.clearValidationEffect()
         }
       }
+    },
+    handleEnterKeyDown (e) {
+      if (e.target.tagName === 'INPUT') {
+        this.onSubmit(e)
+      }
     }
   }
 }