如果没有变化,不要去更新store,避免没必要的重绘

src/renderers/Table.tsx

@@ -408,7 +408,7 @@ export default class Table extends React.Component<TableProps, object> {
     item.change(values, savePristine);
 
     // 值发生变化了，需要通过 onSelect 通知到外面，否则会出现数据不同步的问题
-    this.syncSelected();
+    item.modified && this.syncSelected();
 
     if ((!saveImmediately && !propsSaveImmediately) || savePristine) {
       return;

src/store/table.ts

@@ -21,7 +21,8 @@ import {
   findTree,
   flattenTree,
   eachTree,
-  difference
+  difference,
+  immutableExtends
 } from '../utils/helper';
 import {evalExpression} from '../utils/tpl';
 
@@ -159,15 +160,8 @@ export const Row = types
     },
 
     change(values: object, savePristine?: boolean) {
-      self.data = {
-        ...self.data,
-        ...values
-      };
-
-      savePristine &&
-        (self.pristine = {
-          ...self.data
-        });
+      self.data = immutableExtends(self.data, values);
+      savePristine && (self.pristine = self.data);
     },
 
     reset() {

src/utils/helper.ts

@@ -331,6 +331,29 @@ export function isArrayChildrenModified(
   return false;
 }
 
+export function immutableExtends(to: any, from: any, deep = false) {
+  // 不是对象，不可以merge
+  if (!isObject(to) || !isObject(from)) {
+    return to;
+  }
+
+  let ret = to;
+
+  Object.keys(from).forEach(key => {
+    const origin = to[key];
+    const value = to[key];
+
+    // todo 支持深度merge
+    if (origin !== value) {
+      // 一旦有修改，就创建个新对象。
+      ret = ret !== to ? ret : {...to};
+      ret[key] = value;
+    }
+  });
+
+  return ret;
+}
+
 // 即将抛弃
 export function makeColumnClassBuild(
   steps: number,