diff --git a/README.md b/README.md
index 7ed5d44d176ae09a9cdf192409e3784ec97d054c..b0bd3ab1696ac552bfdf668e39fd938e8a12f39a 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,9 @@
            
      ③ 访问项目：在浏览器中输入 -> `localhost:2020` 
 
-登录账号，管理员账号：admin;密码：1.     
+登录账号:
+    管理员账号：admin
+    密码：1    
        
 #### 5.说在最后
 1.  系统正在开发，想到的后面再更新
diff --git a/src/main/java/com/stu/stusystem/controller/system/stuClassController.java b/src/main/java/com/stu/stusystem/controller/system/StuClassController.java
similarity index 98%
rename from src/main/java/com/stu/stusystem/controller/system/stuClassController.java
rename to src/main/java/com/stu/stusystem/controller/system/StuClassController.java
index 853de44969a39f2b542c503c23acf00087670773..3b4a529c6d566433a9534a955caea83500609185 100644
--- a/src/main/java/com/stu/stusystem/controller/system/stuClassController.java
+++ b/src/main/java/com/stu/stusystem/controller/system/StuClassController.java
@@ -18,7 +18,8 @@ import java.util.HashMap;
  */
 @RestController
 @RequestMapping("/stu/class")
-public class stuClassController {
+public class StuClassController {
+
     private StuClassService stuClassService;
 
     @ApiOperation("分页查询")
diff --git a/src/main/java/com/stu/stusystem/service/system/StuClassService.java b/src/main/java/com/stu/stusystem/service/system/StuClassService.java
index c693bbd61f9e1b2d4c9197bee37aeada2e502ec1..78b92ee6f16f38f35aebf5d3f52668ca461104d4 100644
--- a/src/main/java/com/stu/stusystem/service/system/StuClassService.java
+++ b/src/main/java/com/stu/stusystem/service/system/StuClassService.java
@@ -100,9 +100,25 @@ public class StuClassService {
      * 查询全部的班级
      */
     public HashMap<String, String> getStuClassAll() {
-        return null;
+        List<StuClass> stuClasses = this.stuClassMapper.selectAll();
+        HashMap<String, String> map = new HashMap<>();
+        for (StuClass sc : stuClasses) {
+            map.put(sc.getId(), sc.getClassName());
+        }
+        return map;
     }
 
+    /**
+     * 流：并行，串行
+     * filter，通过条件过滤出元素
+     * distinct，去重
+     * limit，会返回一个不超过给定长度的流，取前几个
+     * skip，返回一个扔掉前 n 个元素的流，扔掉前几个
+     * map,对流中做统一处理(加前/后缀)
+     * flatMap,里面需要的参数是个流，流的扁平化处理，比如将字符串拆分成一个个的字母集合。层级深时候使用flatmap
+     * sorted,排序
+     */
+
     @Autowired
     public void setStuClassMapper(StuClassMapper stuClassMapper) {
         this.stuClassMapper = stuClassMapper;