diff --git a/src/class15/staticfield/Student.java b/src/class15/staticfield/Student.java
new file mode 100644
index 0000000..a403ca2
--- /dev/null
+++ b/src/class15/staticfield/Student.java
@@ -0,0 +1,7 @@
+package class15.staticfield;
+
+public class Student {
+    //静态变量，属于类，所有对象共享
+    static String name;
+    //实例变量，属于对象，对象有自己
+}
diff --git a/src/class15/staticfield/Test.java b/src/class15/staticfield/Test.java
new file mode 100644
index 0000000..147da30
--- /dev/null
+++ b/src/class15/staticfield/Test.java
@@ -0,0 +1,21 @@
+package class15.staticfield;
+
+public class Test {
+    public static void main(String[] args) {
+        Student.name = "袁华";
+        System.out.println(Student.name);
+
+        Student s1 = new Student();
+        s1.name = "马冬梅";
+        System.out.println(s1.name);
+
+        Student s2 = new Student();
+        s2.name = "秋雅";
+        System.out.println(s1.name);
+        System.out.println(s2.name);
+
+
+
+
+    }
+}
diff --git a/src/class15/staticfield/Test2.java b/src/class15/staticfield/Test2.java
new file mode 100644
index 0000000..9207d6c
--- /dev/null
+++ b/src/class15/staticfield/Test2.java
@@ -0,0 +1,11 @@
+package class15.staticfield;
+
+public class Test2 {
+    public static void main(String[] args) {
+        new User();
+        new User();
+        new User();
+        new User();
+        System.out.println(User.count);
+    }
+}
diff --git a/src/class15/staticfield/User.java b/src/class15/staticfield/User.java
new file mode 100644
index 0000000..788b949
--- /dev/null
+++ b/src/class15/staticfield/User.java
@@ -0,0 +1,8 @@
+package class15.staticfield;
+
+public class User {
+    public static int count = 0;
+    public User(){
+        count++;
+    }
+}