From 5d3382668f9c8c15f44194f01a09ccf16727efbb Mon Sep 17 00:00:00 2001
From: xcchengguo <2395432766@qq.com>
Date: Thu, 22 Dec 2022 01:20:03 +0800
Subject: [PATCH] =?UTF-8?q?=E6=88=91=E7=9A=84=E7=AC=AC=E5=8D=81=E4=B8=80?=
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---
 ...1 \345\244\247\344\275\234\344\270\232.md" | 97 +++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 "18 \350\260\242\345\256\270/20221221 \345\244\247\344\275\234\344\270\232.md"

diff --git "a/18 \350\260\242\345\256\270/20221221 \345\244\247\344\275\234\344\270\232.md" "b/18 \350\260\242\345\256\270/20221221 \345\244\247\344\275\234\344\270\232.md"
new file mode 100644
index 0000000..dfa9d9d
--- /dev/null
+++ "b/18 \350\260\242\345\256\270/20221221 \345\244\247\344\275\234\344\270\232.md"	
@@ -0,0 +1,97 @@
+```Java
+import java.util.Scanner;
+
+public class cls {
+    //    static 静态 continue 跳过循环
+    static Scanner sc = new Scanner(System.in);
+    public static void main(String[] args) {
+welCome();
+        String []student = new String[10];
+        student[0]= "苏清华";
+        student[1]= "林佳泽";
+         while (true){
+             choicMenu(sc.nextInt(), student);
+         }
+    }
+    public static void welCome(){
+//        欢迎界面
+
+        System.out.println("===================="+
+                "\n-\t欢迎使用三班学生管理系统\t\t-"+
+                "\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.查询学生信息\t\t-"+
+                "\n-\t\t5。删除学生信息\t\t-"+
+                "\n-\t\t6.退出学生信息\t\t-"+
+                "\n===================="+
+                "\n请输入对应的数字选择你需要的功能");
+    }
+    public static void choicMenu(int num,String[]student){
+        switch (num){
+            case 1:
+//                浏览所有学生信息
+                System.out.println("浏览所有学生信息");
+                all(student);
+                break;
+            case 2:
+//                添加学生信息
+                System.out.println("添加学生信息");
+                add(student);
+                break;
+            case 3:
+//                修改学生信息
+                System.out.println("你选择了修改学生信息");
+                break;
+            case 4:
+//                删除学生信息
+                System.out.println("你选择了删除学生信息");
+                break;
+            case 5:
+                System.out.println("你选择了查询学生信息");
+//                查询学生信息
+                break;
+            case 6:
+                System.out.println("你选择了退出管理系统");
+//                退出管理系统
+                break;
+            default:
+                System.out.println("没有这一项功能");
+                break;
+        }
+
+    }
+    public static void all(String[] student){
+        for (String name:student){
+            if (name==null){
+                continue;
+            }
+            System.out.println(name+"\t");
+        }
+    }
+    public static void add(String[]student){
+        System.out.println("请输入你要添加的学生：");
+        String name = sc.next();
+        int index =searchIndex(student,name);
+        if (index==-1){
+            System.out.println("该学生已经在数据库了，请不要重复添加");
+        }else {
+            int nullIndex=searchIndex(student,name);
+            student[nullIndex]=name;
+            System.out.println("添加成功");
+            all(student);
+        }
+    }
+    public static int searchIndex(String[]student , String name){
+        int indext = -1;
+        for (int i = 0; i < student.length; i++) {
+            if (name.equals(student[i])){
+                indext=i;
+                return  indext;
+            }
+        }
+        return indext;
+    }
+}
+```
+
-- 
Gitee