diff --git a/day10/src/com/inmind/interface_extends07/Demo07.java b/day10/src/com/inmind/interface_extends07/Demo07.java
new file mode 100644
index 0000000..c181efb
--- /dev/null
+++ b/day10/src/com/inmind/interface_extends07/Demo07.java
@@ -0,0 +1,24 @@
+package com.inmind.interface_extends07;
+/*
+类的继承：单继承的，一个类永远都只能有一个直接父类
+
+接口继承，接口是多继承的，接口可以有很多个直接父类
+注意事项：
+1.如果是继承，子接口可以继承所有父接口的抽象方法的，子接口的实现类必须实现所有的抽象方法
+2.如果继承的父接口们中有同名的抽象方法，子类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该同名抽象方法。
+3.接口的静态方法不能通过对象调用的
+4.父接口的静态方法不能通过子类接口直接访问调用的
+5.静态方法属于哪个接口，就应该由哪个接口名直接调用
+
+总结：
+类与类：   单继承      extends
+类与接口：  多实现     implements
+接口与接口：多继承     extends
+ */
+public class Demo07 {
+    public static void main(String[] args) {
+        //调用2个父接口的静态方法
+        MyInterfaceFu1.methodSFu1();
+        MyInterfaceFu2.methodSFu2();
+    }
+}
diff --git a/day10/src/com/inmind/interface_extends07/MyInterfaceFu1.java b/day10/src/com/inmind/interface_extends07/MyInterfaceFu1.java
new file mode 100644
index 0000000..ca2cf93
--- /dev/null
+++ b/day10/src/com/inmind/interface_extends07/MyInterfaceFu1.java
@@ -0,0 +1,14 @@
+package com.inmind.interface_extends07;
+
+public interface MyInterfaceFu1 {
+    void methodFu1();
+
+    public static void methodSFu1(){
+        System.out.println("MyInterfaceFu1的静态方法methodSFu1");
+    }
+
+    public default void methodD(){
+        System.out.println("MyInterfaceFu1的默认方法methodD");
+    }
+
+}
diff --git a/day10/src/com/inmind/interface_extends07/MyInterfaceFu2.java b/day10/src/com/inmind/interface_extends07/MyInterfaceFu2.java
new file mode 100644
index 0000000..7686186
--- /dev/null
+++ b/day10/src/com/inmind/interface_extends07/MyInterfaceFu2.java
@@ -0,0 +1,14 @@
+package com.inmind.interface_extends07;
+
+public interface MyInterfaceFu2 {
+    void methodFu2();
+    void methodFu();
+
+    public static void methodSFu2(){
+        System.out.println("MyInterfaceFu2的静态方法methodSFu2");
+    }
+
+    public default void methodD(){
+        System.out.println("MyInterfaceFu2的默认方法methodD");
+    }
+}
diff --git a/day10/src/com/inmind/interface_extends07/MyInterfaceZi.java b/day10/src/com/inmind/interface_extends07/MyInterfaceZi.java
new file mode 100644
index 0000000..e07d4e3
--- /dev/null
+++ b/day10/src/com/inmind/interface_extends07/MyInterfaceZi.java
@@ -0,0 +1,11 @@
+package com.inmind.interface_extends07;
+
+public interface MyInterfaceZi extends MyInterfaceFu1,MyInterfaceFu2{
+    void methodZi();
+
+    //注意：如果父接口中的默认方法有重名的，那么子接口必须重写该默认方法
+    @Override
+    default void methodD() {
+        System.out.println("重新实现重名的默认方法");
+    }
+}
diff --git a/day10/src/com/inmind/interface_extends07/MyInterfaceZiImpl.java b/day10/src/com/inmind/interface_extends07/MyInterfaceZiImpl.java
new file mode 100644
index 0000000..08844a2
--- /dev/null
+++ b/day10/src/com/inmind/interface_extends07/MyInterfaceZiImpl.java
@@ -0,0 +1,23 @@
+package com.inmind.interface_extends07;
+
+public class MyInterfaceZiImpl implements MyInterfaceZi{
+    @Override
+    public void methodZi() {
+
+    }
+
+    @Override
+    public void methodFu1() {
+
+    }
+
+    @Override
+    public void methodFu2() {
+
+    }
+
+    @Override
+    public void methodFu() {
+
+    }
+}