diff --git a/xue.txt b/xue.txt
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+
+package xue;
+
+public class Bank {
+    private  static int num=10000;
+    private long ide;
+    private double money;
+    private String name,time;
+    public Bank(long ide_init,double money_init,String name_init,String time_init)
+    {
+        ide=ide_init;money=money_init;name=name_init;time=time_init;
+        System.out.println("创建账户成功！");
+        num++;
+    }
+    public void income(double save)
+    {
+        if(save>0)
+        {
+            money+=save;
+            System.out.println("成功存款"+save+"元！");
+        }
+        else
+            System.out.println("存款失败！");
+    }
+    public double takeout(double take)
+    {
+        if(take<=money)
+        {
+            money-=take;
+            System.out.println("取款成功！");
+            return take;
+        }
+        else
+        {
+            System.out.println("取款失败！");
+            return 0;
+        }
+    }
+    public void display()
+    {
+        System.out.println("您的银行卡号为："+num);
+        System.out.println("姓名："+name);
+        System.out.println("身份证号："+ide);
+        System.out.println("您当前的余额："+money+"元！");
+        System.out.println("银行卡创建时间："+time);
+    }
+
+}
+
+
+
+
+
+
+package xue;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Scanner;
+public class bankTest {
+
+    public static void main(String[] args) {
+        System.out.println("请先创建一个账户：");
+        Scanner sc=new Scanner(System.in);
+        System.out.print("请输入身份证件号：");
+        long iden=sc.nextLong();
+        System.out.println("请输入姓名：");
+        String namen=sc.next();
+        System.out.println("请输入首次存入金额数：");
+        double moneyn=sc.nextDouble();
+        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        String date=sdf.format(new Date());
+        Bank index=new Bank(iden,moneyn,namen,date);
+        while(true)
+        {
+            System.out.println("请输入您要进行的操作：1 存款；2 取款；3  查询余额； 4 退出");
+            int i=sc.nextInt();
+            switch(i)
+            {
+                case 1:
+                    System.out.println("请输入存款金额：");
+                    double saven=sc.nextDouble();
+                    index.income(saven);
+                    break;
+                case 2:
+                    System.out.println("请输入取款金额：");
+                    double taken=sc.nextDouble();
+                    index.takeout(taken);
+                    break;
+                case 3:
+                    index.display();
+                    break;
+                case 4:
+                    sc.close();
+                    System.exit(0);
+            }
+        }
+    }
+}
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