diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index eaaa86cf8ae9658b757f6ea600d5f022986d4add..61d1c60c3dca89136f7b704e0aa7e7e7627e6d43 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,32 +4,10 @@
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-      <change afterPath="$PROJECT_DIR$/06_数据容器/04-集合/12_集合课后练习.py" afterDir="false" />
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+      <change beforePath="$PROJECT_DIR$/06_数据容器/01_序列和切片.py" beforeDir="false" afterPath="$PROJECT_DIR$/06_数据容器/01_序列和切片.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/06_数据容器/02_序列切片课后练习.py" beforeDir="false" afterPath="$PROJECT_DIR$/06_数据容器/02_序列切片课后练习.py" afterDir="false" />
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@@ -56,8 +34,10 @@
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     "Python.01_list删除.executor": "Debug",
     "Python.01_while循环练习题_求1-100的和.executor": "Debug",
+    "Python.01_序列和切片.executor": "Debug",
     "Python.02_list列表的常用操作.executor": "Debug",
     "Python.02_列表的取值.executor": "Debug",
+    "Python.02_序列切片课后练习.executor": "Debug",
     "Python.03_while循环的基础案例-猜数字.executor": "Debug",
     "Python.04_值的索引.executor": "Debug",
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@@ -95,7 +75,7 @@
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     "RunOnceActivity.ShowReadmeOnStart": "true",
     "git-widget-placeholder": "main",
-    "last_opened_file_path": "/Users/qinyingjie/Documents/python-workspace/python-demo/06_数据容器/01-列表",
+    "last_opened_file_path": "/Users/qinyingjie/Documents/python-workspace/python-demo/06_数据容器/02-字符串",
     "node.js.detected.package.eslint": "true",
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@@ -107,11 +87,11 @@
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       <recent name="$PROJECT_DIR$/06_数据容器/01-列表" />
       <recent name="$PROJECT_DIR$/06_数据容器/04-集合" />
       <recent name="$PROJECT_DIR$/05_函数进阶" />
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     <key name="MoveFile.RECENT_KEYS">
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@@ -121,8 +101,8 @@
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-  <component name="RunManager" selected="Python.test_01">
-    <configuration name="05_修改列表值" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
+  <component name="RunManager" selected="Python.02_序列切片课后练习">
+    <configuration name="01_序列和切片" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
       <module name="python-demo" />
       <option name="ENV_FILES" value="" />
       <option name="INTERPRETER_OPTIONS" value="" />
@@ -131,12 +111,12 @@
         <env name="PYTHONUNBUFFERED" value="1" />
       </envs>
       <option name="SDK_HOME" value="" />
-      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/06_数据容器/01-列表" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/06_数据容器" />
       <option name="IS_MODULE_SDK" value="true" />
       <option name="ADD_CONTENT_ROOTS" value="true" />
       <option name="ADD_SOURCE_ROOTS" value="true" />
       <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
-      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/06_数据容器/01-列表/05_修改列表值.py" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/06_数据容器/01_序列和切片.py" />
       <option name="PARAMETERS" value="" />
       <option name="SHOW_COMMAND_LINE" value="false" />
       <option name="EMULATE_TERMINAL" value="false" />
@@ -145,7 +125,7 @@
       <option name="INPUT_FILE" value="" />
       <method v="2" />
     </configuration>
-    <configuration name="06_列表新增" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
+    <configuration name="02_序列切片课后练习" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
       <module name="python-demo" />
       <option name="ENV_FILES" value="" />
       <option name="INTERPRETER_OPTIONS" value="" />
@@ -154,12 +134,12 @@
         <env name="PYTHONUNBUFFERED" value="1" />
       </envs>
       <option name="SDK_HOME" value="" />
-      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/06_数据容器/01-列表" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/06_数据容器" />
       <option name="IS_MODULE_SDK" value="true" />
       <option name="ADD_CONTENT_ROOTS" value="true" />
       <option name="ADD_SOURCE_ROOTS" value="true" />
       <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
-      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/06_数据容器/01-列表/06_列表新增.py" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/06_数据容器/02_序列切片课后练习.py" />
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       <option name="EMULATE_TERMINAL" value="false" />
@@ -191,29 +171,6 @@
       <option name="INPUT_FILE" value="" />
       <method v="2" />
     </configuration>
-    <configuration name="12_字典" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
-      <module name="python-demo" />
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-      <option name="INTERPRETER_OPTIONS" value="" />
-      <option name="PARENT_ENVS" value="true" />
-      <envs>
-        <env name="PYTHONUNBUFFERED" value="1" />
-      </envs>
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-      <option name="REDIRECT_INPUT" value="false" />
-      <option name="INPUT_FILE" value="" />
-      <method v="2" />
-    </configuration>
     <configuration name="test" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
       <module name="python-demo" />
       <option name="ENV_FILES" value="" />
@@ -262,11 +219,11 @@
     </configuration>
     <recent_temporary>
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+        <item itemvalue="Python.02_序列切片课后练习" />
+        <item itemvalue="Python.01_序列和切片" />
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         <item itemvalue="Python.test" />
         <item itemvalue="Python.07_列表删除" />
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@@ -294,7 +251,11 @@
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+      <workItem from="1722958099322" duration="648000" />
+      <workItem from="1723121743484" duration="297000" />
     </task>
     <task id="LOCAL-00001" summary="fix:基础语法">
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@@ -368,7 +329,23 @@
       <option name="project" value="LOCAL" />
       <updated>1722344289002</updated>
     </task>
-    <option name="localTasksCounter" value="10" />
+    <task id="LOCAL-00010" summary="fix:列表整理">
+      <option name="closed" value="true" />
+      <created>1722357564336</created>
+      <option name="number" value="00010" />
+      <option name="presentableId" value="LOCAL-00010" />
+      <option name="project" value="LOCAL" />
+      <updated>1722357564336</updated>
+    </task>
+    <task id="LOCAL-00011" summary="fix:列表整理">
+      <option name="closed" value="true" />
+      <created>1722357967372</created>
+      <option name="number" value="00011" />
+      <option name="presentableId" value="LOCAL-00011" />
+      <option name="project" value="LOCAL" />
+      <updated>1722357967372</updated>
+    </task>
+    <option name="localTasksCounter" value="12" />
     <servers />
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@@ -382,13 +359,14 @@
     <MESSAGE value="fix:修改顺序" />
     <MESSAGE value="fix:添加注释" />
     <MESSAGE value="fix:列表" />
-    <option name="LAST_COMMIT_MESSAGE" value="fix:列表" />
+    <MESSAGE value="fix:列表整理" />
+    <option name="LAST_COMMIT_MESSAGE" value="fix:列表整理" />
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+    <SUITE FILE_PATH="coverage/python_demo$02_.coverage" NAME="02_序列切片课后练习 Coverage Results" MODIFIED="1723121883085" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/06_数据容器" />
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@@ -406,6 +384,7 @@
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diff --git "a/06_\346\225\260\346\215\256\345\256\271\345\231\250/01_\345\272\217\345\210\227\345\222\214\345\210\207\347\211\207.py" "b/06_\346\225\260\346\215\256\345\256\271\345\231\250/01_\345\272\217\345\210\227\345\222\214\345\210\207\347\211\207.py"
index c7197b017eb59ec1444519f77e1626aea90dc449..e3363c384e9b7e6decf9a00f80ac42414d729db9 100644
--- "a/06_\346\225\260\346\215\256\345\256\271\345\231\250/01_\345\272\217\345\210\227\345\222\214\345\210\207\347\211\207.py"
+++ "b/06_\346\225\260\346\215\256\345\256\271\345\231\250/01_\345\272\217\345\210\227\345\222\214\345\210\207\347\211\207.py"
@@ -20,6 +20,7 @@ print(f"结果4：{result4}")
 # 对列表进行切片，从3开始，到1结束，步长-1
 my_list = [0, 1, 2, 3, 4, 5, 6]
 result5 = my_list[3:1:-1]
+# result5 = my_list[3:1:1]
 print(f"结果5：{result5}")
 # 对元组进行切片，从头开始，到尾结束，步长-2
 my_tuple = (0, 1, 2, 3, 4, 5, 6)
diff --git "a/06_\346\225\260\346\215\256\345\256\271\345\231\250/02_\345\272\217\345\210\227\345\210\207\347\211\207\350\257\276\345\220\216\347\273\203\344\271\240.py" "b/06_\346\225\260\346\215\256\345\256\271\345\231\250/02_\345\272\217\345\210\227\345\210\207\347\211\207\350\257\276\345\220\216\347\273\203\344\271\240.py"
index 0bc155952a591f73471c22dda21c7cfe48d2c665..8ed5690e4e75479da7cc8d9b826bc6d34ec2ff37 100644
--- "a/06_\346\225\260\346\215\256\345\256\271\345\231\250/02_\345\272\217\345\210\227\345\210\207\347\211\207\350\257\276\345\220\216\347\273\203\344\271\240.py"
+++ "b/06_\346\225\260\346\215\256\345\256\271\345\231\250/02_\345\272\217\345\210\227\345\210\207\347\211\207\350\257\276\345\220\216\347\273\203\344\271\240.py"
@@ -6,6 +6,7 @@ my_str = "万过薪月，员序程马黑来，nohtyP学"
 # 倒序字符串，切片取出
 result1 = my_str[::-1][9:14]
 print(f"方式1结果：{result1}")
+
 # 切片取出，然后倒序
 result2 = my_str[5:10][::-1]
 print(f"方式2结果：{result2}")