diff --git a/3.Spring-Boot-MyBatis/pom.xml b/03.Spring-Boot-MyBatis/pom.xml
similarity index 100%
rename from 3.Spring-Boot-MyBatis/pom.xml
rename to 03.Spring-Boot-MyBatis/pom.xml
diff --git a/3.Spring-Boot-MyBatis/src/main/java/com/springboot/Application.java b/03.Spring-Boot-MyBatis/src/main/java/com/springboot/Application.java
similarity index 100%
rename from 3.Spring-Boot-MyBatis/src/main/java/com/springboot/Application.java
rename to 03.Spring-Boot-MyBatis/src/main/java/com/springboot/Application.java
diff --git a/3.Spring-Boot-MyBatis/src/main/java/com/springboot/bean/Student.java b/03.Spring-Boot-MyBatis/src/main/java/com/springboot/bean/Student.java
similarity index 100%
rename from 3.Spring-Boot-MyBatis/src/main/java/com/springboot/bean/Student.java
rename to 03.Spring-Boot-MyBatis/src/main/java/com/springboot/bean/Student.java
diff --git a/3.Spring-Boot-MyBatis/src/main/java/com/springboot/controller/TestController.java b/03.Spring-Boot-MyBatis/src/main/java/com/springboot/controller/TestController.java
similarity index 100%
rename from 3.Spring-Boot-MyBatis/src/main/java/com/springboot/controller/TestController.java
rename to 03.Spring-Boot-MyBatis/src/main/java/com/springboot/controller/TestController.java
diff --git a/3.Spring-Boot-MyBatis/src/main/java/com/springboot/mapper/StudentMapper.java b/03.Spring-Boot-MyBatis/src/main/java/com/springboot/mapper/StudentMapper.java
similarity index 100%
rename from 3.Spring-Boot-MyBatis/src/main/java/com/springboot/mapper/StudentMapper.java
rename to 03.Spring-Boot-MyBatis/src/main/java/com/springboot/mapper/StudentMapper.java
diff --git a/3.Spring-Boot-MyBatis/src/main/java/com/springboot/service/StudentService.java b/03.Spring-Boot-MyBatis/src/main/java/com/springboot/service/StudentService.java
similarity index 100%
rename from 3.Spring-Boot-MyBatis/src/main/java/com/springboot/service/StudentService.java
rename to 03.Spring-Boot-MyBatis/src/main/java/com/springboot/service/StudentService.java
diff --git a/3.Spring-Boot-MyBatis/src/main/java/com/springboot/service/impl/StudentServiceImp.java b/03.Spring-Boot-MyBatis/src/main/java/com/springboot/service/impl/StudentServiceImp.java
similarity index 100%
rename from 3.Spring-Boot-MyBatis/src/main/java/com/springboot/service/impl/StudentServiceImp.java
rename to 03.Spring-Boot-MyBatis/src/main/java/com/springboot/service/impl/StudentServiceImp.java
diff --git a/3.Spring-Boot-MyBatis/src/main/resources/application.yml b/03.Spring-Boot-MyBatis/src/main/resources/application.yml
similarity index 100%
rename from 3.Spring-Boot-MyBatis/src/main/resources/application.yml
rename to 03.Spring-Boot-MyBatis/src/main/resources/application.yml
diff --git a/3.Spring-Boot-MyBatis/src/main/resources/init.sql b/03.Spring-Boot-MyBatis/src/main/resources/init.sql
similarity index 100%
rename from 3.Spring-Boot-MyBatis/src/main/resources/init.sql
rename to 03.Spring-Boot-MyBatis/src/main/resources/init.sql