diff --git a/rollup.config.js b/rollup.config.js
new file mode 100644
index 000000000..b71ac0e49
--- /dev/null
+++ b/rollup.config.js
@@ -0,0 +1,39 @@
+const babel = require("@rollup/plugin-babel");
+const alias = require("@rollup/plugin-alias");
+const resolve = require("@rollup/plugin-node-resolve");
+const commonjs = require("@rollup/plugin-commonjs");
+const path = require("path");
+// import { fileURLToPath } from "url";
+// import path from "path";
+
+// const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const input = "src/index.js";
+
+module.exports = [
+    {
+        input,
+        output: [
+            {
+                file: "dist/fineui.esm.js",
+                format: "esm",
+                sourcemap: true
+            }
+        ],
+        plugins: [
+            alias({
+                entries: [
+                    { find: "@", replacement: path.resolve(__dirname, "src") }
+                ]
+            }),
+            resolve(),
+            babel({
+                babelHelpers: "runtime",
+                presets: ["@babel/preset-env"],
+                plugins: [
+                    ["@babel/plugin-proposal-decorators", { legacy: true }]
+                ]
+            }),
+            commonjs()
+        ]
+    }
+];
diff --git a/src/case/button/node/treenode.js b/src/case/button/node/treenode.js
index 5e6a31d58..9a599f344 100644
--- a/src/case/button/node/treenode.js
+++ b/src/case/button/node/treenode.js
@@ -169,7 +169,7 @@ export class FirstPlusGroupNode extends BasicTreeNode {
     }
 }
 
-@shortcut
+@shortcut()
 export class MidPlusGroupNode extends BasicTreeNode {
     static xtype = "bi.mid_plus_group_node";
 
diff --git a/src/core/func/string.js b/src/core/func/string.js
index d273db525..c6f98fedc 100644
--- a/src/core/func/string.js
+++ b/src/core/func/string.js
@@ -1,4 +1,4 @@
-import {isString} from "../2.base";
+import {isString, each} from "../2.base";
 
 /**
  * 判断字符串是否已指定的字符串开始
@@ -62,7 +62,7 @@ export function appendQuery(str, paras) {
     } else {
         src += "&";
     }
-    BI._.each(paras, function (value, name) {
+    each(paras, function (value, name) {
         if (typeof (name) === "string") {
             src += name + "=" + value + "&";
         }
diff --git a/src/widget/dynamicdate/dynamicdate.combo.js b/src/widget/dynamicdate/dynamicdate.combo.js
index 96266a023..684776f8c 100644
--- a/src/widget/dynamicdate/dynamicdate.combo.js
+++ b/src/widget/dynamicdate/dynamicdate.combo.js
@@ -28,8 +28,7 @@ export class DynamicDateCombo extends Single {
     static EVENT_ERROR = "EVENT_ERROR";
     static EVENT_BEFORE_POPUPVIEW = "EVENT_BEFORE_POPUPVIEW";
     static EVENT_BEFORE_YEAR_MONTH_POPUPVIEW = "EVENT_BEFORE_YEAR_MONTH_POPUPVIEW";
-    static EVENT_BEFORE_YEAR_MONTH_POPUPVIEW = "EVENT_BEFORE_YEAR_MONTH_POPUPVIEW";
-
+   
     static Static = 1;
     static Dynamic = 2;