修复地区选择切换的bug

pages/menu/menu.vue

@@ -79,7 +79,8 @@ export default {
 			customerName: '',
 			show: false,
 			columns: [],
-			loginInfo:""
+			loginInfo:"",
+			cityInfo:[]
 		};
 	},
 	computed: {
@@ -194,7 +195,21 @@ export default {
 				this.show = true;
 			})
 		},
-		changeHandler() { },
+		changeHandler(e) { 
+			const {
+                columnIndex,
+                index,
+				picker = this.$refs.uPicker
+            } = e
+			if(columnIndex===0){
+				this.cityInfo = this.columns[0][index].children?this.columns[0][index].children:[]
+				picker.setColumnValues(1, this.cityInfo)
+				picker.setColumnValues(2, this.cityInfo[0].children?this.cityInfo[0].children:[])
+			}
+			if(columnIndex===1){
+				 picker.setColumnValues(2, this.cityInfo[index].children?this.cityInfo[index].children:[])
+			}
+		},
 		confirm(res) {
 			const { value } = res;
 			console.log(value)