diff --git a/day10/src/com/inmind/interface_interface07/Demo07.java b/day10/src/com/inmind/interface_interface07/Demo07.java
new file mode 100644
index 0000000..c2779ec
--- /dev/null
+++ b/day10/src/com/inmind/interface_interface07/Demo07.java
@@ -0,0 +1,28 @@
+package com.inmind.interface_interface07;
+/*
+类的继承：单继承，一个类永远只有一个父类
+
+接口的继承：接口是多继承的，接口可以有多个直接的父接口
+接口的多继承的注意事项：
+1.如果是继承，子接口继承所有的父接口的抽象方法，子接口的实现类必须实现所有的抽象方法
+2.如果是继承的父接口中有同名的抽象方法，子接口只会继承一个抽象方法，子接口的实现类也只需要实现一次同名的抽象方法
+3.接口的静态方法不能通过对象调用
+4.接口的静态方法只跟本接口相关，只能通过本接口名.静态方法来调用
+5.常量也类似
+
+总结：
+类与类：单继承，多层继承
+类与接口：多实现
+接口与接口：多继承
+ */
+public class Demo07 {
+    public static void main(String[] args) {
+        NewInterfaceImpl newInterface = new NewInterfaceImpl();
+        //newInterface.smethod1();//父接口的静态方法，子接口的对象无法调用
+        //NewInterface.smethod1();//父接口的静态方法，子接口也无法调用
+        MyInterface1.smethod1();
+        MyInterface2.smethod2();
+        System.out.println(MyInterface1.i1);
+        System.out.println(MyInterface2.i2);
+    }
+}
diff --git a/day10/src/com/inmind/interface_interface07/MyInterface1.java b/day10/src/com/inmind/interface_interface07/MyInterface1.java
new file mode 100644
index 0000000..d30942a
--- /dev/null
+++ b/day10/src/com/inmind/interface_interface07/MyInterface1.java
@@ -0,0 +1,11 @@
+package com.inmind.interface_interface07;
+
+public interface MyInterface1 {
+    int i1 = 20;
+
+    void method1();
+    void method();
+    static void smethod1(){
+        System.out.println("接口1的静态方法");
+    }
+}
diff --git a/day10/src/com/inmind/interface_interface07/MyInterface2.java b/day10/src/com/inmind/interface_interface07/MyInterface2.java
new file mode 100644
index 0000000..a3e4290
--- /dev/null
+++ b/day10/src/com/inmind/interface_interface07/MyInterface2.java
@@ -0,0 +1,11 @@
+package com.inmind.interface_interface07;
+
+public interface MyInterface2 {
+    int i2 = 10;
+
+    void method2();
+    void method();
+    static void smethod2(){
+        System.out.println("接口2的静态方法");
+    }
+}
diff --git a/day10/src/com/inmind/interface_interface07/NewInterface.java b/day10/src/com/inmind/interface_interface07/NewInterface.java
new file mode 100644
index 0000000..e2edc86
--- /dev/null
+++ b/day10/src/com/inmind/interface_interface07/NewInterface.java
@@ -0,0 +1,5 @@
+package com.inmind.interface_interface07;
+//接口与接口之间是多继承的
+public interface NewInterface extends MyInterface1, MyInterface2{
+    void newMethod();
+}
diff --git a/day10/src/com/inmind/interface_interface07/NewInterfaceImpl.java b/day10/src/com/inmind/interface_interface07/NewInterfaceImpl.java
new file mode 100644
index 0000000..cfa9322
--- /dev/null
+++ b/day10/src/com/inmind/interface_interface07/NewInterfaceImpl.java
@@ -0,0 +1,23 @@
+package com.inmind.interface_interface07;
+
+public class NewInterfaceImpl implements NewInterface{
+    @Override
+    public void newMethod() {
+
+    }
+
+    @Override
+    public void method1() {
+
+    }
+
+    @Override
+    public void method() {
+
+    }
+
+    @Override
+    public void method2() {
+
+    }
+}