diff --git a/.gitignore b/.gitignore
index cded6f1f..714fa7e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
-.vscode
+.idea
+.vscode
 .github
 img/*.html
 notebook
diff --git a/.idea/.gitignore b/.idea/.gitignore
deleted file mode 100644
index e69de29b..00000000
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
deleted file mode 100644
index 67240d70..00000000
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ /dev/null
@@ -1,60 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <profile version="1.0">
-    <option name="myName" value="Project Default" />
-    <inspection_tool class="PyAttributeOutsideInitInspection" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyBroadExceptionInspection" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyGlobalUndefinedInspection" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyMethodMayBeStaticInspection" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyNoneFunctionAssignmentInspection" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyPackageRequirementsInspection" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="ignoredPackages">
-        <value>
-          <list size="16">
-            <item index="0" class="java.lang.String" itemvalue="flask-mysqldb" />
-            <item index="1" class="java.lang.String" itemvalue="mysqlclient" />
-            <item index="2" class="java.lang.String" itemvalue="Werkzeug" />
-            <item index="3" class="java.lang.String" itemvalue="mysql" />
-            <item index="4" class="java.lang.String" itemvalue="MarkupSafe" />
-            <item index="5" class="java.lang.String" itemvalue="gunicorn" />
-            <item index="6" class="java.lang.String" itemvalue="itsdangerous" />
-            <item index="7" class="java.lang.String" itemvalue="click" />
-            <item index="8" class="java.lang.String" itemvalue="Jinja2" />
-            <item index="9" class="java.lang.String" itemvalue="Flask" />
-            <item index="10" class="java.lang.String" itemvalue="beautifulsoup4" />
-            <item index="11" class="java.lang.String" itemvalue="pysolr-3.9.0" />
-            <item index="12" class="java.lang.String" itemvalue="nltk" />
-            <item index="13" class="java.lang.String" itemvalue="scikit_learn" />
-            <item index="14" class="java.lang.String" itemvalue="requests" />
-            <item index="15" class="java.lang.String" itemvalue="numpy" />
-          </list>
-        </value>
-      </option>
-    </inspection_tool>
-    <inspection_tool class="PyPep8Inspection" enabled="true" level="WEAK WARNING" enabled_by_default="true">
-      <option name="ignoredErrors">
-        <list>
-          <option value="E127" />
-          <option value="E722" />
-          <option value="E501" />
-        </list>
-      </option>
-    </inspection_tool>
-    <inspection_tool class="PyPep8NamingInspection" enabled="true" level="WEAK WARNING" enabled_by_default="true">
-      <option name="ignoredErrors">
-        <list>
-          <option value="N802" />
-          <option value="N806" />
-          <option value="N803" />
-        </list>
-      </option>
-    </inspection_tool>
-    <inspection_tool class="PyShadowingNamesInspection" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyTypeCheckerInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyUnresolvedReferencesInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
-      <option name="processCode" value="true" />
-      <option name="processLiterals" value="true" />
-      <option name="processComments" value="true" />
-    </inspection_tool>
-  </profile>
-</component>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
deleted file mode 100644
index 105ce2da..00000000
--- a/.idea/inspectionProfiles/profiles_settings.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <settings>
-    <option name="USE_PROJECT_PROFILE" value="false" />
-    <version value="1.0" />
-  </settings>
-</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
deleted file mode 100644
index 6904bdce..00000000
--- a/.idea/misc.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.8 (python-small-examples)" project-jdk-type="Python SDK" />
-</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index 869eee4f..00000000
--- a/.idea/modules.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/python-small-examples.iml" filepath="$PROJECT_DIR$/.idea/python-small-examples.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/python-small-examples.iml b/.idea/python-small-examples.iml
deleted file mode 100644
index 74d515a0..00000000
--- a/.idea/python-small-examples.iml
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="PYTHON_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/venv" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
deleted file mode 100644
index 94a25f7f..00000000
--- a/.idea/vcs.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
deleted file mode 100644
index 4d2680a4..00000000
--- a/.idea/workspace.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ChangeListManager">
-    <list default="true" id="2700f56d-648e-474d-b728-07fd5a401700" name="Default Changelist" comment="" />
-    <option name="SHOW_DIALOG" value="false" />
-    <option name="HIGHLIGHT_CONFLICTS" value="true" />
-    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
-    <option name="LAST_RESOLUTION" value="IGNORE" />
-  </component>
-  <component name="Git.Settings">
-    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
-  </component>
-  <component name="ProjectId" id="1rfNoPG8JJjVtGtQeENCqI9ScXH" />
-  <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
-  <component name="ProjectViewState">
-    <option name="hideEmptyMiddlePackages" value="true" />
-    <option name="showLibraryContents" value="true" />
-    <option name="showMembers" value="true" />
-  </component>
-  <component name="PropertiesComponent">
-    <property name="RunOnceActivity.OpenProjectViewOnStart" value="true" />
-  </component>
-  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
-  <component name="TaskManager">
-    <task active="true" id="Default" summary="Default task">
-      <changelist id="2700f56d-648e-474d-b728-07fd5a401700" name="Default Changelist" comment="" />
-      <created>1619363358717</created>
-      <option name="number" value="Default" />
-      <option name="presentableId" value="Default" />
-      <updated>1619363358717</updated>
-    </task>
-    <servers />
-  </component>
-</project>
\ No newline at end of file
diff --git a/md/10.md b/md/10.md
index 3cc76980..b8ca63b2 100644
--- a/md/10.md
+++ b/md/10.md
@@ -6,7 +6,7 @@
 
 #### 10  转为整型　　
 
-int(x, base =10) , x可能为字符串或数值，将x 转换为一个普通整数。如果参数是字符串，那么它可能包含符号和小数点。如果超出了普通整数的表示范围，一个长整数被返回。  
+int(x, base =10) , x可能为字符串或数值，将 x 转换为一个普通整数。如果参数是字符串，那么它可能包含符号和小数点。 
 
 ```python
 In [1]: int('12',16)
diff --git a/md/15.md b/md/15.md
index 93b443f5..60fdbe93 100644
--- a/md/15.md
+++ b/md/15.md
@@ -7,16 +7,16 @@
 #### 15 任意对象转为字符串　　
 
 ```python
-In [14]: i = 100                                                                
+In [1]: i = 100                                                                
 
-In [15]: str(i)                                                                 
-Out[15]: '100'
+In [2]: str(i)                                                                 
+Out[2]: '100'
 
-In [16]: str([])                                                                
-Out[16]: '[]'
+In [3]: str([])                                                                
+Out[3]: '[]'
 
-In [17]: str(tuple())                                                           
-Out[17]: '()'
+In [4]: str(tuple())                                                           
+Out[4]: '()'
 ```
 
 <center>[上一个例子](14.md)    [下一个例子](16.md)</center>
\ No newline at end of file
diff --git a/md/17.md b/md/17.md
index 33dbc7f5..e09883c3 100644
--- a/md/17.md
+++ b/md/17.md
@@ -10,8 +10,9 @@
 
 ```python
 In [1]: s = "1 + 3 +5"
-    ...: eval(s)
-Out[1]: 9
+
+In [2]: eval(s)
+Out[2]: 9
 ```
 
 <center>[上一个例子](16.md)    [下一个例子](18.md)</center>
\ No newline at end of file
diff --git a/md/24.md b/md/24.md
index 6aa000d2..22af8a0c 100644
--- a/md/24.md
+++ b/md/24.md
@@ -9,11 +9,9 @@
 ```python
 In [31]: def f():
     ...:     print('i\'m f')
-    ...:
 
 In [32]: def g():
     ...:     print('i\'m g')
-    ...:
 
 In [33]: [f,g][1]()
 i'm g
diff --git a/md/25.md b/md/25.md
index 6a655eb4..f1e70f29 100644
--- a/md/25.md
+++ b/md/25.md
@@ -7,7 +7,8 @@
 #### 25 生成逆序序列
 
 ```python
-list(range(10,-1,-1)) # [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
+list(range(10,-1,-1))
+# [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
 ```
 
 第三个参数为负时，表示从第一个参数开始递减，终止到第二个参数(不包括此边界)
diff --git a/script/.idea/.gitignore b/script/.idea/.gitignore
deleted file mode 100644
index 26d33521..00000000
--- a/script/.idea/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
diff --git a/script/.idea/inspectionProfiles/Project_Default.xml b/script/.idea/inspectionProfiles/Project_Default.xml
deleted file mode 100644
index e4919dcd..00000000
--- a/script/.idea/inspectionProfiles/Project_Default.xml
+++ /dev/null
@@ -1,45 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <profile version="1.0">
-    <option name="myName" value="Project Default" />
-    <inspection_tool class="PyNoneFunctionAssignmentInspection" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyPackageRequirementsInspection" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="ignoredPackages">
-        <value>
-          <list size="10">
-            <item index="0" class="java.lang.String" itemvalue="flask-mysqldb" />
-            <item index="1" class="java.lang.String" itemvalue="mysqlclient" />
-            <item index="2" class="java.lang.String" itemvalue="Werkzeug" />
-            <item index="3" class="java.lang.String" itemvalue="mysql" />
-            <item index="4" class="java.lang.String" itemvalue="MarkupSafe" />
-            <item index="5" class="java.lang.String" itemvalue="gunicorn" />
-            <item index="6" class="java.lang.String" itemvalue="itsdangerous" />
-            <item index="7" class="java.lang.String" itemvalue="click" />
-            <item index="8" class="java.lang.String" itemvalue="Jinja2" />
-            <item index="9" class="java.lang.String" itemvalue="Flask" />
-          </list>
-        </value>
-      </option>
-    </inspection_tool>
-    <inspection_tool class="PyPep8Inspection" enabled="true" level="WEAK WARNING" enabled_by_default="true">
-      <option name="ignoredErrors">
-        <list>
-          <option value="E127" />
-        </list>
-      </option>
-    </inspection_tool>
-    <inspection_tool class="PyPep8NamingInspection" enabled="true" level="WEAK WARNING" enabled_by_default="true">
-      <option name="ignoredErrors">
-        <list>
-          <option value="N802" />
-        </list>
-      </option>
-    </inspection_tool>
-    <inspection_tool class="PyShadowingNamesInspection" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
-    <inspection_tool class="PyUnresolvedReferencesInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
-      <option name="processCode" value="true" />
-      <option name="processLiterals" value="true" />
-      <option name="processComments" value="true" />
-    </inspection_tool>
-  </profile>
-</component>
\ No newline at end of file
diff --git a/script/.idea/inspectionProfiles/profiles_settings.xml b/script/.idea/inspectionProfiles/profiles_settings.xml
deleted file mode 100644
index 105ce2da..00000000
--- a/script/.idea/inspectionProfiles/profiles_settings.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <settings>
-    <option name="USE_PROJECT_PROFILE" value="false" />
-    <version value="1.0" />
-  </settings>
-</component>
\ No newline at end of file
diff --git a/script/.idea/misc.xml b/script/.idea/misc.xml
deleted file mode 100644
index 8161a60d..00000000
--- a/script/.idea/misc.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.7 (base)" project-jdk-type="Python SDK" />
-</project>
\ No newline at end of file
diff --git a/script/.idea/modules.xml b/script/.idea/modules.xml
deleted file mode 100644
index 7e8a5742..00000000
--- a/script/.idea/modules.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/script.iml" filepath="$PROJECT_DIR$/.idea/script.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/script/.idea/script.iml b/script/.idea/script.iml
deleted file mode 100644
index 8dc09e54..00000000
--- a/script/.idea/script.iml
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="PYTHON_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-  <component name="TestRunnerService">
-    <option name="PROJECT_TEST_RUNNER" value="pytest" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/script/.idea/vcs.xml b/script/.idea/vcs.xml
deleted file mode 100644
index 6c0b8635..00000000
--- a/script/.idea/vcs.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
-  </component>
-</project>
\ No newline at end of file