diff --git "a/10 \346\234\261\345\277\227\351\271\217/2022 12.21java\345\255\246\347\224\237\347\263\273\347\273\237\344\275\234\344\270\232.md" "b/10 \346\234\261\345\277\227\351\271\217/2022 12.21java\345\255\246\347\224\237\347\263\273\347\273\237\344\275\234\344\270\232.md"
deleted file mode 100644
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--- "a/10 \346\234\261\345\277\227\351\271\217/2022 12.21java\345\255\246\347\224\237\347\263\273\347\273\237\344\275\234\344\270\232.md"	
+++ /dev/null
@@ -1,3 +0,0 @@
-作业
-
-```java
diff --git "a/10 \346\234\261\345\277\227\351\271\217/2022 12.22java\345\255\246\347\224\237\347\263\273\347\273\237\344\275\234\344\270\232.md" "b/10 \346\234\261\345\277\227\351\271\217/2022 12.22java\345\255\246\347\224\237\347\263\273\347\273\237\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..d2ab4d0e7fc4e65a02ef356089558c76fc862542
--- /dev/null
+++ "b/10 \346\234\261\345\277\227\351\271\217/2022 12.22java\345\255\246\347\224\237\347\263\273\347\273\237\344\275\234\344\270\232.md"	
@@ -0,0 +1,124 @@
+学习系统作业
+
+
+
+```java
+import java.util.Scanner;
+
+public class jj {
+    public static void main(String[] args) {
+        String[] studnts = new String[40];
+        studnts[1] = "z";
+        studnts[1] = "z";
+        studnts[1] = "z";
+        studnts[1] = "z";
+        studnts[1] = "z";
+        studnts[1] = "z";
+        we();
+        Scanner sc = new Scanner(System.in);
+        sc(sc.nextInt(), studnts);
+
+    }
+
+    private static void we() {
+        System.out.println("=============================");
+        System.out.println("-     欢迎使用学生管理系统\t-");
+        System.out.println("-   \t1.浏览所有学生信息\t\t-");
+        System.out.println("-   \t2.添加学生信息\t\t-");
+        System.out.println("-   \t3.修改学生信息\t\t-");
+        System.out.println("-   \t4.删除学生信息\t\t-");
+        System.out.println("-   \t5.查询学生信息\t\t-");
+        System.out.println("-   \t6.退出管理系统\t\t-");
+        System.out.println("=============================");
+        System.out.println("-   \t输入相关数字\t\t-");
+    }
+
+    public static int sc(int hu, String[] studnts) {
+        switch (hu) {
+            case 1:
+                viewAllStudent(studnts);
+                break;
+            case 2:
+                break;
+            case 3:
+                eDit(studnts);
+                break;
+            case 4:
+                sDW(studnts);
+                break;
+            case 5:
+                we(studnts);
+                break;
+            case 6:
+                System.out.println("你选择退出该系统");
+                break;
+            default:
+        }
+        return hu;
+    }
+
+    private static int we(String[] studnts) {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("请输入要查询的学生");
+        String name = sc.next();
+        int s = d(studnts, name);
+        if(s== -1){
+            System.out.println("没有该学生");
+        }else{
+            System.out.println("找到了该学生"+(s));
+        }
+        return s;
+    }
+
+    private static void sDW(String[] studnts) {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("请选择删除哪个学生");
+        String name = sc.next();
+        int s = d(studnts,name);
+        if (s ==-1){
+            System.out.println("没有该学生 无法删除");
+        }else{
+            studnts[s]=null;
+            System.out.println("删除成功");
+        }
+    }
+
+    private static void eDit(String[] studnts) {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("请修改学生信息");
+        String name = sc.next();
+        int index = searchindex(studnts,name);
+        if(index ==-1){
+            System.out.println("没有该学生。无法修改");
+        }else {
+            System.out.println("请问你要把【"+name+"】修改为谁");
+            String newName = sc.next();
+               studnts[index]=newName;
+            System.out.println("修改成功");
+        }
+
+    }
+    private static int d(String[] studnts, String name) {
+        return 0;
+    }
+    private static int searchindex(String[] studnts, String name) {
+        return 0;
+    }
+
+    private static void viewAllStudent(String[] studnts) {
+        System.out.println("现有学生三名");
+        System.out.println("熊大，熊二，熊三");
+    }
+
+    public static void a(String[] studens){
+        System.out.println("人员名单");
+        for (String name:studens){
+            System.out.println(name+"\t");
+        }
+
+    }
+}
+
+
+
+```