diff --git a/src/components/mdp-ui-ext/mdp-expand/FormData.vue b/src/components/mdp-ui-ext/mdp-expand/FormData.vue
index 1ebecdb..bcbee5e 100644
--- a/src/components/mdp-ui-ext/mdp-expand/FormData.vue
+++ b/src/components/mdp-ui-ext/mdp-expand/FormData.vue
@@ -70,10 +70,6 @@ import treeTool from '@/components/mdp-ui/js/treeTool.js'
 					this.initFieldQx(k)  
 				})
 				return formFields
-			},
-			span:{
-				type:Number,
-				default:24
 			}
 		},
 		props:{
@@ -82,8 +78,11 @@ import treeTool from '@/components/mdp-ui/js/treeTool.js'
 			formDef:{type:Object,default:null},
 			formFields:{type:Array,default:null}, 
 			labelWidth:{type:String,default:null},			
-			labelPosition:{type:String,default:null},
-		
+			labelPosition:{type:String,default:null}, 
+			span:{
+				type:Number,
+				default:24
+			}
 		},
 		watch: {
 			value:function(){
@@ -135,7 +134,7 @@ import treeTool from '@/components/mdp-ui/js/treeTool.js'
 				if(item.span){ 
 					return item.span;
 				}
-				return span=this.span;
+				return this.span;
 			}, 
 			//新增提交FormData 表单数据表 父组件监听@submit="afterAddSubmit"
 			editSubmit: function () {