diff --git a/w3/Employee.java b/w3/Employee.java
new file mode 100644
index 0000000..0883562
--- /dev/null
+++ b/w3/Employee.java
@@ -0,0 +1,87 @@
+public class Employee {
+    private static String companyName;
+    private String ID;
+    private String name;
+    private String department;
+    private double salary;
+    public static void setCompanyName(String name){
+        companyName = name;
+    }
+    public static String getCompanyName(){
+        return companyName;
+    }
+    public Employee(String ID,String name,String department,double salary){
+        this.ID=ID;
+        this.name=name;
+        this.department=department;
+        if(salary<2000){
+            System.out.println("初始工资低于最低标准");
+        }else{
+        this.salary=salary;
+        }
+    }
+    public String getID(){
+        return ID;
+    }
+    public void setID(String ID){
+        this.ID=ID;
+    }
+    public String getName(){
+        return name;
+    }
+    public void setName(String name){
+        this.name=name;
+    }
+    public String getDepartment(){
+        return department;
+    }
+    public void setDepartment(String department){
+        this.department=department;
+    }
+    public double getSalary(){
+        return salary;
+    }
+    public void setSalary(double salary){
+        if(salary<2000){
+            System.out.println("不可以低于最低工资标准");
+        }
+        else{
+            this.salary=salary;
+        }
+    }
+    public void raiseSalary(double percent){
+        this.salary*=(100+percent)/100;
+        if(this.salary<2000){
+            System.out.println("仍小于最低工资标准");
+        }
+    }
+    public void info(){
+        System.out.println("公司名称：" + companyName);
+        System.out.println("员工ID:"+ID);
+        System.out.println("员工姓名:"+name);
+        System.out.println("员工部门:"+department);
+        System.out.println("员工工资:"+salary);
+    }
+    public static  void main(String[] args){
+        Employee.setCompanyName("科技有限公司");
+        Employee emp1 = new Employee("1001", "张三", "技术部", 5000);
+        System.out.println("===== 员工1 初始信息 =====");
+        emp1.info();
+        emp1.setDepartment("产品部");
+        emp1.setSalary(7000);
+        System.out.println("===== 修改后信息 =====");
+        emp1.info();
+        System.out.println("===== 尝试设置非法工资 =====");
+        emp1.setSalary(1800);
+        emp1.info();
+        emp1.raiseSalary(20);
+        System.out.println("===== 涨薪20%后 =====");
+        emp1.info();
+        Employee emp2 = new Employee("1002", "李四", "市场部", 2000);
+        System.out.println("===== 员工2 初始信息（最低工资） =====");
+        emp2.info();
+        emp2.raiseSalary(5);
+        System.out.println("===== 涨薪5%后 =====");
+        emp2.info();
+    }
+}