From 3bde427153b33ee6eb210d9f90daee3efa3f7957 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E4=BD=B3=E7=82=9C?= <626104790@qq.com>
Date: Tue, 27 Dec 2022 14:56:04 +0800
Subject: [PATCH] =?UTF-8?q?=E7=AC=ACnnn=E6=AC=A1=E4=BD=9C=E4=B8=9A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../20221227 \344\275\263\347\202\234.md"     | 153 ++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 "26 \351\231\210\344\275\263\347\202\234/20221227 \344\275\263\347\202\234.md"

diff --git "a/26 \351\231\210\344\275\263\347\202\234/20221227 \344\275\263\347\202\234.md" "b/26 \351\231\210\344\275\263\347\202\234/20221227 \344\275\263\347\202\234.md"
new file mode 100644
index 0000000..77e961e
--- /dev/null
+++ "b/26 \351\231\210\344\275\263\347\202\234/20221227 \344\275\263\347\202\234.md"	
@@ -0,0 +1,153 @@
+import java.util.Arrays;
+import java.util.Scanner;
+
+public class u1 {
+    public static void main(String[] args) {
+        String[] n=new String[10];
+       while (true){
+            qd();//启动系统，显示功能
+            int num=js();//接收用户输入
+            gn(num,n);
+            if (num==6){
+                break;
+            }
+        }
+    }
+
+```java
+private static void gn(int num,String[] n) {
+    switch (num){
+        case 1:
+          xs(n);
+        break;
+        case 2:
+         tj(n);
+        break;
+        case 3:
+         xg(n);
+        break;
+        case 4:
+        int a=ty(n);
+        if (a!=-1){
+            sc(a,n);
+        }
+        break;
+        case 5:
+         int b=ty(n);
+         if (b!=-1){
+             cx(b,n);
+         }
+        break;
+        case 6:
+        break;
+    }
+}
+
+private static void cx(int b, String[] n) {
+    System.out.println("该书籍在第"+(b+1)+"个位置");
+}
+
+private static void sc(int a, String[] n) {
+    n[a]=null;
+    System.out.println("删除成功！");
+}
+
+private static int ty(String[] n) {
+    System.out.println("输入书本名称");
+    Scanner n1=new Scanner(System.in);
+    String mc= n1.next();
+    int cf=-1;
+    int aa=0;
+    for (int i=0;i<n.length;i++){
+        if (mc.equals(n[i])){
+            cf=i;
+            break;
+        }else {
+            aa++;
+            if (n.length==aa){
+                System.out.println("未查询到该书本");
+                break;
+            }
+        }
+    }
+    return cf;
+}
+
+private static void xg(String[] n) {
+    System.out.println("输入需要修改的书本");
+    Scanner n1=new Scanner(System.in);
+    String mc= n1.next();
+    int aa=0;
+    for (int i=0;i<n.length;i++){
+        if (mc.equals(n[i])){
+            System.out.println("输入修改后的名称");
+            Scanner a=new Scanner(System.in);
+            n[i]= a.next();
+            System.out.println("修改成功！");
+            break;
+        }else{
+            aa++;
+            if (n.length==aa){
+                System.out.println("未找到该书本");
+                break;
+            }
+        }
+    }
+}
+
+private static void tj(String[] n) {
+    System.out.println("输入添加的书本名称");
+    Scanner n1=new Scanner(System.in);
+    String mc= n1.next();
+    for (int j=0;j<n.length;j++){
+        if (mc.equals(n[j])){
+            System.out.println("已存在该"+mc+"书本");
+            break;
+        }else{
+            if (null==n[j]){
+                n[j]=mc;
+                System.out.println("添加成功！");
+                break;
+            }
+        }
+    }
+}
+
+private static void xs(String[] n) {
+    int a=0;
+    for (int i=0;i<n.length;i++){
+        if (null==n[i]){
+            a++;
+            if (n.length==a){
+                System.out.println("未添加任何书籍");
+            }
+            continue;
+        }else {
+            System.out.print(n[i]+" ");
+        }
+    }
+}
+
+private static int js() {
+    System.out.println("请选择您的操作：");
+    Scanner sc = new Scanner(System.in);
+    int num = sc.nextInt();
+    return num;
+}
+
+private static void qd() {
+    System.out.println("" +
+            "\n==============================\n" +
+            "-     欢迎使用2班图书管理系统   -\n" +
+            "- \t\t1.浏览所有书本信息\t\t-\n" +
+            "- \t\t2.添加书本信息\t\t-\n" +
+            "- \t\t3.修改书本信息\t\t-\n" +
+            "- \t\t4.删除书本信息\t\t-\n" +
+            "- \t\t5.查询书本信息\t\t-\n" +
+            "- \t\t6.退出管理系统\t\t-\n" +
+            "==============================");
+}
+```
+}
+```
+\ No newline at end of file
\ No newline at end of file
-- 
Gitee