diff --git "a/20 \347\237\263\350\211\257\346\266\233/202221222 \345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md" "b/20 \347\237\263\350\211\257\346\266\233/202221222 \345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md"
new file mode 100644
index 0000000000000000000000000000000000000000..fe45a6c25efdd178a6f529cd408efba2f8249421
--- /dev/null
+++ "b/20 \347\237\263\350\211\257\346\266\233/202221222 \345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md"	
@@ -0,0 +1,71 @@
+## 作业
+
+```java
+package 学生管理系统;
+
+import java.util.Scanner;
+
+public class StudentManagerSystem {
+    public static void main(String[] args) {
+              String[] students = new String[47];
+              students[0]="东圣";
+              students[1]="物语";
+              students[2]="牛马";
+              start();
+              int num = choice();
+              todo(num,students);
+    }
+        public static void start(){
+            System.out.println(""+
+                    "==============================\n" +
+                    "-     欢迎使用2班学生管理系统   -\n" +
+                    "-  \t\t1.浏览所有学生信息\t\t-\n" +
+                    "-  \t\t2.添加学生信息\t\t-\n" +
+                    "-  \t\t3.修改学生信息\t\t-\n" +
+                    "-  \t\t4.删除学生信息\t\t-\n" +
+                    "-  \t\t5.查询学生信息\t\t-\n" +
+                    "-  \t\t6.退出管理系统\t\t-\n" +
+                    "===============================");
+        }
+        public static int choice(){
+            System.out.println("请选择您的操作");
+            Scanner sc = new Scanner(System.in);
+            int num = sc.nextInt();
+            return num;
+        }
+        public static void todo(int num,String[] students){
+        switch (num){
+            case 1:
+                System.out.println("1.浏览所有学生信息");
+                viewAllStudent(students);
+                break;
+            case 2:
+                    System.out.println("2.添加学生信息");
+                break;
+            case 3:
+                System.out.println("3.修改学生信息");
+                break;
+            case 4:
+                System.out.println("4.删除学生信息");
+                break;
+            case 5:
+                System.out.println("5.查询学生信息");
+                break;
+            case 6:
+                System.out.println("6.退出管理系统");
+                break;
+            default:
+                System.out.println("选择错误，没有该功能");
+                break;
+
+        }
+        }
+        private static void viewAllStudent(String[] students){
+            for (String name:students) {
+                System.out.println(name+"\t");
+            }
+        }
+    }
+
+
+```