diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..1ab46bc
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,26 @@
+# EditorConfig is awesome: https://editorconfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+end_of_line = lf
+
+# Unix-style newlines with a newline ending every file
+insert_final_newline = true
+
+# Set default charset
+charset = utf-8
+
+[*.{js,ts}]
+# 4 space indentation
+indent_style = space
+indent_size = 4
+
+# Tab indentation (no size specified)
+[.vscode/**.json]
+indent_style = tab
+
+# 历史原因需要保留 tab 缩进的代码文件
+[src/{test/extension.test.ts,extension.ts}]
+indent_style = tab
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 221c04e..8625702 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Internal
 
+- Add `.editorconfig` file. (添加 `.editorconfig` 文件)
 - Upgrade plugin dependency versions. (升级插件依赖版本)
 - Modify eslint configuration. (调整 eslint 配置)
 
@@ -119,4 +120,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Adds an editor context menu with submenu
 - Implement conversion to Camel Case, Pascal Case, Snake Case(Snake Camel, Snake Pascal, Snake Upper), Kebab Case(Kebab Camel, Kebab Pascal, Kebab Upper), Lower Case, Upper Case
 - Add test cases
-- Initial release
\ No newline at end of file
+- Initial release
diff --git a/src/core/path-convert/cyclic-conversion.ts b/src/core/path-convert/cyclic-conversion.ts
index 12e8b5a..6a16dad 100644
--- a/src/core/path-convert/cyclic-conversion.ts
+++ b/src/core/path-convert/cyclic-conversion.ts
@@ -113,4 +113,4 @@ function replaceTextEditorSelectedText() {
         });
         userSelection.lastConvertedSelectionsText = textList;
     }
-}
\ No newline at end of file
+}
diff --git a/src/core/variable-convert/cyclic-conversion.ts b/src/core/variable-convert/cyclic-conversion.ts
index 25e2532..460616f 100644
--- a/src/core/variable-convert/cyclic-conversion.ts
+++ b/src/core/variable-convert/cyclic-conversion.ts
@@ -112,4 +112,4 @@ function replaceTextEditorSelectedText() {
         });
         userSelection.lastConvertedSelectionsText = textList;
     }
-}
\ No newline at end of file
+}
diff --git a/src/handler/status-bar-handler.ts b/src/handler/status-bar-handler.ts
index 3a8d5c4..b2219f0 100644
--- a/src/handler/status-bar-handler.ts
+++ b/src/handler/status-bar-handler.ts
@@ -10,7 +10,7 @@ let statusBarItemList: Array<vscode.StatusBarItem> = [];
  * @since 2024-04-07
  */
 export function createStatusBarItem() {
-	// 变量转换状态栏 2024.04.07
+    // 变量转换状态栏 2024.04.07
     const createVariableConvertStatusBarItem = () => {
         const statusBarItem = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Left);
         // Icon Listing docs: https://code.visualstudio.com/api/references/icons-in-labels#icon-listing
@@ -20,7 +20,7 @@ export function createStatusBarItem() {
         // statusBarItem.show();
         return statusBarItem;
     };
-	// 路径转换状态栏 2024.12.14
+    // 路径转换状态栏 2024.12.14
     const createPathConvertStatusBarItem = () => {
         const statusBarItem = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Left);
         statusBarItem.text = '$(sync-ignored)路径转换'; // italic symbol-null
@@ -51,4 +51,4 @@ export function updateStatusBarItemVisable(selectTextLength: number) {
     statusBarItemList.forEach(statusBarItem => {
         statusBarItem.hide();
     });
-}
\ No newline at end of file
+}
diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index 8fc2b80..b857f33 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -41,4 +41,4 @@ export function stringListArrayDuplicateRemoval(stringArr: Array<string[]>): Arr
         }
     }
     return newArr;
-}
\ No newline at end of file
+}