diff --git a/Difficult_Rocket/client/__init__.py b/Difficult_Rocket/client/__init__.py
index 7c7c477..91f9bf2 100644
--- a/Difficult_Rocket/client/__init__.py
+++ b/Difficult_Rocket/client/__init__.py
@@ -40,6 +40,7 @@ from Difficult_Rocket import DR_runtime, DR_option
 from Difficult_Rocket.utils.new_thread import new_thread
 from Difficult_Rocket.client.fps.fps_log import FpsLogger
 from Difficult_Rocket.client.guis.widgets import InputBox
+from Difficult_Rocket.exception.language import LanguageNotFound
 from Difficult_Rocket.exception.command import CommandError
 from Difficult_Rocket.client.render.sr1_ship import SR1ShipRender
 from Difficult_Rocket.client.screen import BaseScreen, DRScreen, DRDEBUGScreen
@@ -229,12 +230,13 @@ class ClientWindow(Window):
 
     @new_thread('window save_info')
     def save_info(self):
-        self.logger.info('save_info start')
+        self.logger.info(tr().client.save_info.start())
         config_file = tools.load_file('./configs/main.toml')
         config_file['window']['width'] = self.width
         config_file['window']['height'] = self.height
+        config_file['runtime']['language'] = DR_runtime.language
         rtoml.dump(config_file, open('./configs/main.toml', 'w'))
-        self.logger.info('save_info end')
+        self.logger.info(tr().client.save_info.done())
 
     """
     draws and some event
@@ -306,6 +308,15 @@ class ClientWindow(Window):
         elif command.re_match('default'):
             self.set_size(int(self.main_config['window_default']['width']),
                           int(self.main_config['window_default']['height']))
+        elif command.re_match('lang'):
+            try:
+                lang = command.text[5:]
+                tr._language = lang
+                self.logger.info(tr().language_set_to())
+            except LanguageNotFound:
+                self.logger.info(tr().language_available().format(os.listdir('./configs/lang')))
+            self.save_info()
+
         # self.command_tree.parse(command.plain_command)
 
     @_call_screen_after
diff --git a/Difficult_Rocket/client/render/sr1_ship.py b/Difficult_Rocket/client/render/sr1_ship.py
index 1f1aed9..b517203 100644
--- a/Difficult_Rocket/client/render/sr1_ship.py
+++ b/Difficult_Rocket/client/render/sr1_ship.py
@@ -363,7 +363,6 @@ class SR1ShipRender(BaseScreen):
             if self.load_xml(path):  # 加载成功一个就停下
                 break
         self.render_ship()
-        print(paths)
 
 
 if __name__ == '__main__':
diff --git a/Difficult_Rocket/command/api.py b/Difficult_Rocket/command/api.py
index dec8467..0ddbf27 100644
--- a/Difficult_Rocket/command/api.py
+++ b/Difficult_Rocket/command/api.py
@@ -14,7 +14,7 @@ gitee:  @shenjackyuanjie
 # system function
 import re
 
-from typing import Union, Optional, Type, Tuple, List
+from typing import Union, Optional
 
 # DR
 # from Difficult_Rocket.exception.command import *
@@ -31,6 +31,7 @@ class CommandText:
         self.plain_command = text
         self.text = text
         self.error = False
+        self.value_list = []
         self.value_dict = {}
 
     def counter(self, start: Optional[int] = 0) -> int:
diff --git a/Difficult_Rocket/exception/language.py b/Difficult_Rocket/exception/language.py
index 1b68ed2..269f2aa 100644
--- a/Difficult_Rocket/exception/language.py
+++ b/Difficult_Rocket/exception/language.py
@@ -9,7 +9,7 @@ from Difficult_Rocket.exception import BaseError
 __all__ = ['LanguageNotFound',
            'TranslateError',
            'TranslateKeyNotFound',
-           'TranslateFileNotFound']
+           'TranslateFileError']
 
 
 class LanguageNotFound(BaseError):
@@ -30,8 +30,8 @@ class TranslateKeyNotFound(TranslateError):
         return f"{self.__class__.__name__}: Can't get item {'. '.join(self.item_names)} from: {self.value}"
 
 
-class TranslateFileNotFound(TranslateError):
-    """翻译文件缺失"""
+class TranslateFileError(TranslateError):
+    """翻译文件错误"""
 
 
 
diff --git a/Difficult_Rocket/main.py b/Difficult_Rocket/main.py
index 873a582..ab26c2a 100644
--- a/Difficult_Rocket/main.py
+++ b/Difficult_Rocket/main.py
@@ -50,6 +50,7 @@ class Game:
             logging.config.dictConfig(log_config)
             self.logger = logging.getLogger('main')
             self.logger.info(tr().main.logger.mkdir())
+        self.logger.info(tr().language_set_to())
         self.logger.info(tr().main.logger.created())
         # version check
         self.python_version_check()
diff --git a/Difficult_Rocket/utils/translate.py b/Difficult_Rocket/utils/translate.py
index 03632de..cbb6168 100644
--- a/Difficult_Rocket/utils/translate.py
+++ b/Difficult_Rocket/utils/translate.py
@@ -11,6 +11,7 @@ github: @shenjackyuanjie
 gitee:  @shenjackyuanjie
 """
 
+import os
 import inspect
 
 from dataclasses import dataclass
@@ -18,7 +19,8 @@ from typing import Union, Tuple, Any, List, Dict, Hashable, Optional
 
 from Difficult_Rocket import DR_runtime, DR_option
 from Difficult_Rocket.utils import tools
-from Difficult_Rocket.exception.language import *
+from Difficult_Rocket.exception.language import (LanguageNotFound,
+                                                 TranslateKeyNotFound)
 
 
 @dataclass
@@ -162,10 +164,35 @@ class Tr:
         self.default_config = config.set('source', self) if config is not None else TranslateConfig(source=self)
         self.translates_cache = Translates(value=self.translates, config=self.default_config.copy())
 
-    def init_translate(self):
-        self.translates: Dict[str, Union[str, Dict]] = tools.load_file(f'configs/lang/{self.language_name}.toml')
+    @property
+    def _language(self) -> str:
+        return self.language_name
+
+    @_language.setter
+    def _language(self, value: str):
+        self.init_translate(value)
+
+    def init_translate(self, lang: Optional[str] = None) -> bool:
+        """
+        初始化语言文件
+        :param lang: 要初始化的语言
+        :return:
+        """
+        # 首先判定是否存在对应的语言文件
+        if lang == self.language_name:
+            return False
+        if lang == ' ' or lang == '':
+            raise LanguageNotFound('Can not be empty')
+        lang = lang or self.language_name
+        if not os.path.exists(f'./configs/lang/{lang}.toml'):
+            print(f"lang: {os.path.exists(f'./configs/lang/{lang}.toml')} language = {lang} {self.language_name=}")
+            raise LanguageNotFound(lang)
+        self.translates: Dict[str, Union[str, Dict]] = tools.load_file(f'configs/lang/{lang}.toml')
         self.default_translate: Dict = tools.load_file(f'configs/lang/{DR_runtime.default_language}.toml')
         self.translates_cache = Translates(value=self.translates, config=self.default_config.copy())
+        self.language_name = lang
+        DR_runtime.language = self.language_name
+        return True
 
     def update_lang(self) -> bool:
         if DR_runtime.language != self.language_name:
diff --git a/configs/lang/en-us.toml b/configs/lang/en-us.toml
index c50e07e..3d523fa 100644
--- a/configs/lang/en-us.toml
+++ b/configs/lang/en-us.toml
@@ -1,4 +1,6 @@
 language = "English"
+language_set_to = "Language set to: English"
+language_available = "Available languages list: {}"
 
 [main]
 version.now_on = "Difficult Rocket is running on Python Vision"
@@ -19,6 +21,8 @@ game_start.at = "The main thread of the game starts with : "
 setup.start = "Client start loading"
 setup.use_time = "Client loading has used: {} second"
 setup.use_time_ns = "Client loading has used: {} nano second"
+config.save.start = "Saving config……"
+config.save.done = "Config saved"
 
 [window]
 setup.start = "Window start loading"
diff --git a/configs/lang/zh-CN.toml b/configs/lang/zh-CN.toml
index f2367f7..1198c71 100644
--- a/configs/lang/zh-CN.toml
+++ b/configs/lang/zh-CN.toml
@@ -1,4 +1,6 @@
 language = "简体中文"
+language_set_to = "语言已经设置为：简体中文"
+language_available = "可用语言列表: {}"
 
 [main]
 version.now_on = "困难火箭的运行Python环境为"
@@ -19,6 +21,8 @@ game_start.at = "游戏主线程开始于："
 setup.start = "客户端加载开始"
 setup.use_time = "客户端载入花费: {} 秒"
 setup.use_time_ns = "客户端载入花费: {} 纳秒"
+config.save.start = "正在保存配置文件"
+config.save.done = "配置文件保存完成"
 
 [window]
 setup.start = "游戏窗口加载开始"
diff --git a/docs/src/update_logs.md b/docs/src/update_logs.md
index e42ad5a..3942330 100644
--- a/docs/src/update_logs.md
+++ b/docs/src/update_logs.md
@@ -22,6 +22,50 @@
 - [![Readme-gitee](https://img.shields.io/badge/Readme-中文(点我!)-blue.svg?style=flat-square)](../../README.md)
 - Using [SemVer 2.0.0](https://semver.org/) to manage version
 
+## 20230405 DR `0.7.2.0`
+
+### Translate
+
+- 添加
+  - `language_set_to`: 设置到对应语言时输出
+    - Display when setting to the corresponding language
+  - `language_available`: 可用的语言列表
+    - List of available languages
+  - `client`
+    - `config.save.start`
+    - `config.save.done`
+- `Difficult_Rocket.utils.translate`
+  - `Tr`
+    - 添加了 `_language`(`@property`) 字段
+    - 用于存储和修改语言
+      - Added the `_language`(`@property`) field
+      - Used to store and modify languages
+    - `init_translate`
+      - 添加了 `lang` 参数
+      - 用于设置语言
+        - Added the `lang` parameter
+        - Used to set the language
+
+### Exception
+
+- `language`
+  - `TranslateFileNotFound` -> `TranslateFileError`
+
+### Command
+
+- `lang <language>`
+  - 添加了 `lang` 命令
+  - 直接调用时，会显示可用的语言列表
+  - 用法：`lang <language>`
+    - Added the `lang` command
+    - When called directly, the available language list will be displayed
+    - Usage: `lang <language>`
+
+### Changes
+
+- 现在很多输出信息的地方会使用 i18n
+  - Now many places that output information will use i18n
+
 ## 20230302 DR `0.7.1.5` + Build `1.2.1.0` + DR_rs `0.2.5.6`~`0.2.6.0` + DR_api `0.0.1.0`
 
 ### 文档