diff --git a/datafiting/datafit/entry/src/main/ets/common/commonValue.ets b/datafiting/datafit/entry/src/main/ets/common/commonValue.ets
index 4de7aec..0de7c0c 100644
--- a/datafiting/datafit/entry/src/main/ets/common/commonValue.ets
+++ b/datafiting/datafit/entry/src/main/ets/common/commonValue.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 export class COMMON_VALUE{
   /**
    * 字体大小(大)
@@ -27,4 +43,4 @@ export class COMMON_VALUE{
    * 浅白
    */
   static readonly LIGHT_WHITE = '#F2F2F2'
-}
\ No newline at end of file
+}
diff --git a/datafiting/datafit/entry/src/main/ets/component/ControlBar.ets b/datafiting/datafit/entry/src/main/ets/component/ControlBar.ets
index 47c0578..5511b19 100644
--- a/datafiting/datafit/entry/src/main/ets/component/ControlBar.ets
+++ b/datafiting/datafit/entry/src/main/ets/component/ControlBar.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import promptAction from '@ohos.promptAction'
 import { COMMON_VALUE } from '../common/commonValue'
 import { handle } from '../utils/algorithm/createPotGather'
diff --git a/datafiting/datafit/entry/src/main/ets/component/FitFuncType.ets b/datafiting/datafit/entry/src/main/ets/component/FitFuncType.ets
index 01c3b44..a3de178 100644
--- a/datafiting/datafit/entry/src/main/ets/component/FitFuncType.ets
+++ b/datafiting/datafit/entry/src/main/ets/component/FitFuncType.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import { COMMON_VALUE } from '../common/commonValue'
 import { funcInfo } from '../utils/FunctionUtil'
 
diff --git a/datafiting/datafit/entry/src/main/ets/component/Header.ets b/datafiting/datafit/entry/src/main/ets/component/Header.ets
index 8faa9a5..7ba15e8 100644
--- a/datafiting/datafit/entry/src/main/ets/component/Header.ets
+++ b/datafiting/datafit/entry/src/main/ets/component/Header.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import { COMMON_VALUE } from '../common/commonValue'
 import { BoardInfo } from '../utils/drawBoard/BoardType'
 import { IPoint, PointType } from '../utils/drawBoard/DrawPoint'
@@ -62,4 +78,4 @@ export struct header {
         })
     }.width('100%').height('100%').padding(5).backgroundColor(COMMON_VALUE.LIGHT_WHITE)
   }
-}
\ No newline at end of file
+}
diff --git a/datafiting/datafit/entry/src/main/ets/component/ImageShow.ets b/datafiting/datafit/entry/src/main/ets/component/ImageShow.ets
index d8fc3ed..3380e55 100644
--- a/datafiting/datafit/entry/src/main/ets/component/ImageShow.ets
+++ b/datafiting/datafit/entry/src/main/ets/component/ImageShow.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import {  BoardInfo, CONTEXT, FIT_CONTEXT } from '../utils/drawBoard/BoardType'
 import { IPoint } from '../utils/drawBoard/DrawPoint'
 import { funcInfo, functionUtilIns } from '../utils/FunctionUtil'
@@ -28,4 +44,4 @@ export struct imageShow {
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/datafiting/datafit/entry/src/main/ets/model/createDocumentModel.ets b/datafiting/datafit/entry/src/main/ets/model/createDocumentModel.ets
index d536047..763dd24 100644
--- a/datafiting/datafit/entry/src/main/ets/model/createDocumentModel.ets
+++ b/datafiting/datafit/entry/src/main/ets/model/createDocumentModel.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import picker from '@ohos.file.picker';
 import { BusinessError } from '@ohos.base';
 import fs from '@ohos.file.fs';
diff --git a/datafiting/datafit/entry/src/main/ets/pages/Index.ets b/datafiting/datafit/entry/src/main/ets/pages/Index.ets
index 868cf9e..84bcb2c 100644
--- a/datafiting/datafit/entry/src/main/ets/pages/Index.ets
+++ b/datafiting/datafit/entry/src/main/ets/pages/Index.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import { controlBar } from '../component/ControlBar'
 import { fitFuncType } from '../component/FitFuncType'
 import { header } from '../component/Header'
diff --git a/datafiting/datafit/entry/src/main/ets/utils/FunctionUtil.ets b/datafiting/datafit/entry/src/main/ets/utils/FunctionUtil.ets
index 89d9d5c..e8439ac 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/FunctionUtil.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/FunctionUtil.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import { IPoint, PointType } from './drawBoard/DrawPoint'
 import { handle } from './algorithm/createPotGather'
 
@@ -46,4 +62,4 @@ class FunctionUtil {
   }
 }
 
-export let functionUtilIns = new FunctionUtil()
\ No newline at end of file
+export let functionUtilIns = new FunctionUtil()
diff --git a/datafiting/datafit/entry/src/main/ets/utils/algorithm/createPotGather.ets b/datafiting/datafit/entry/src/main/ets/utils/algorithm/createPotGather.ets
index 67d2ca4..873d624 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/algorithm/createPotGather.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/algorithm/createPotGather.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import { mathjs } from './evaluate';
 import {IPoint, PointType} from "../drawBoard/DrawPoint"
 import {FitRes} from "./fittingResult"
@@ -156,4 +172,4 @@ class CreatePointGather {
   }
 }
 
-export let handle: CreatePointGather = new CreatePointGather();
\ No newline at end of file
+export let handle: CreatePointGather = new CreatePointGather();
diff --git a/datafiting/datafit/entry/src/main/ets/utils/algorithm/evaluate.ets b/datafiting/datafit/entry/src/main/ets/utils/algorithm/evaluate.ets
index b95bac4..48349d8 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/algorithm/evaluate.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/algorithm/evaluate.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 interface replaceableVar {
   char: string,
   value: number
diff --git a/datafiting/datafit/entry/src/main/ets/utils/algorithm/exponentialFit.ets b/datafiting/datafit/entry/src/main/ets/utils/algorithm/exponentialFit.ets
index f307a02..4eb74f5 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/algorithm/exponentialFit.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/algorithm/exponentialFit.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import {IPoint} from "../drawBoard/DrawPoint"
 
 export class Exponent {
@@ -45,4 +61,4 @@ export class Exponent {
 
     return [a, b];
   }
-}
\ No newline at end of file
+}
diff --git a/datafiting/datafit/entry/src/main/ets/utils/algorithm/fittingResult.ets b/datafiting/datafit/entry/src/main/ets/utils/algorithm/fittingResult.ets
index dbff2b4..7a3135f 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/algorithm/fittingResult.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/algorithm/fittingResult.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 /**
  * 拟合结果接口类型，包含拟合的函数系数和协方差矩阵
  */
@@ -6,4 +22,4 @@ export interface FitRes {
   covarianceMatrix?: number[][];
   error?: number;
   R_squared?: number;
-}
\ No newline at end of file
+}
diff --git a/datafiting/datafit/entry/src/main/ets/utils/algorithm/least_square.ets b/datafiting/datafit/entry/src/main/ets/utils/algorithm/least_square.ets
index f4776af..6b7ab73 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/algorithm/least_square.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/algorithm/least_square.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import {IPoint} from "../drawBoard/DrawPoint"
 import {FitRes} from "./fittingResult"
 
@@ -123,4 +139,4 @@ export class Matrix {
 
     return fitRes;
   }
-}
\ No newline at end of file
+}
diff --git a/datafiting/datafit/entry/src/main/ets/utils/algorithm/logarithmicFit.ets b/datafiting/datafit/entry/src/main/ets/utils/algorithm/logarithmicFit.ets
index 29ff938..02cdfe4 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/algorithm/logarithmicFit.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/algorithm/logarithmicFit.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import {IPoint} from "../drawBoard/DrawPoint"
 import {Matrix} from "./least_square"
 
@@ -62,4 +78,4 @@ export class Logarithm {
     }
     return [ a, b, c ];
   }
-}
\ No newline at end of file
+}
diff --git a/datafiting/datafit/entry/src/main/ets/utils/drawBoard/BoardType.ets b/datafiting/datafit/entry/src/main/ets/utils/drawBoard/BoardType.ets
index 1d0a379..f73c79e 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/drawBoard/BoardType.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/drawBoard/BoardType.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 import { IPoint, PointType } from './DrawPoint';
 //标准值
 /**
diff --git a/datafiting/datafit/entry/src/main/ets/utils/drawBoard/DrawPoint.ets b/datafiting/datafit/entry/src/main/ets/utils/drawBoard/DrawPoint.ets
index e8b9fa2..a407c6d 100644
--- a/datafiting/datafit/entry/src/main/ets/utils/drawBoard/DrawPoint.ets
+++ b/datafiting/datafit/entry/src/main/ets/utils/drawBoard/DrawPoint.ets
@@ -1,3 +1,19 @@
+/*
+Copyright  2026 LI Meng
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0 
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
 export enum PointType{
   DISCONTINUE = 0,
   CONTINUE = 1
@@ -12,4 +28,4 @@ export interface IPoint{
   y:number
 
   pointType:PointType
-}
\ No newline at end of file
+}