diff --git a/9.Spring-Boot-Redis-Cache/pom.xml b/09.Spring-Boot-Redis-Cache/pom.xml
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/pom.xml
rename to 09.Spring-Boot-Redis-Cache/pom.xml
diff --git a/9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/Application.java b/09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/Application.java
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/Application.java
rename to 09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/Application.java
diff --git a/9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/ApplicationTest.java b/09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/ApplicationTest.java
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/ApplicationTest.java
rename to 09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/ApplicationTest.java
diff --git a/9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/bean/Student.java b/09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/bean/Student.java
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/bean/Student.java
rename to 09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/bean/Student.java
diff --git a/9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/config/RedisConfig.java b/09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/config/RedisConfig.java
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/config/RedisConfig.java
rename to 09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/config/RedisConfig.java
diff --git a/9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/mapper/StudentMapper.java b/09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/mapper/StudentMapper.java
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/mapper/StudentMapper.java
rename to 09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/mapper/StudentMapper.java
diff --git a/9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/service/StudentService.java b/09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/service/StudentService.java
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/service/StudentService.java
rename to 09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/service/StudentService.java
diff --git a/9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/service/impl/StudentServiceImpl.java b/09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/service/impl/StudentServiceImpl.java
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/java/com/springboot/service/impl/StudentServiceImpl.java
rename to 09.Spring-Boot-Redis-Cache/src/main/java/com/springboot/service/impl/StudentServiceImpl.java
diff --git a/9.Spring-Boot-Redis-Cache/src/main/resources/application.yml b/09.Spring-Boot-Redis-Cache/src/main/resources/application.yml
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/resources/application.yml
rename to 09.Spring-Boot-Redis-Cache/src/main/resources/application.yml
diff --git a/9.Spring-Boot-Redis-Cache/src/main/resources/init.sql b/09.Spring-Boot-Redis-Cache/src/main/resources/init.sql
similarity index 100%
rename from 9.Spring-Boot-Redis-Cache/src/main/resources/init.sql
rename to 09.Spring-Boot-Redis-Cache/src/main/resources/init.sql