diff --git a/javaSE-day13/lib/logback-classic-1.2.3.jar b/javaSE-day13/lib/logback-classic-1.2.3.jar
new file mode 100644
index 0000000..51b5b48
Binary files /dev/null and b/javaSE-day13/lib/logback-classic-1.2.3.jar differ
diff --git a/javaSE-day13/lib/logback-core-1.2.3.jar b/javaSE-day13/lib/logback-core-1.2.3.jar
new file mode 100644
index 0000000..b692c26
Binary files /dev/null and b/javaSE-day13/lib/logback-core-1.2.3.jar differ
diff --git a/javaSE-day13/lib/slf4j-api-1.7.26.jar b/javaSE-day13/lib/slf4j-api-1.7.26.jar
new file mode 100644
index 0000000..dcd077b
Binary files /dev/null and b/javaSE-day13/lib/slf4j-api-1.7.26.jar differ
diff --git a/javaSE-day13/src/com/inmind/logback03/Demo05.java b/javaSE-day13/src/com/inmind/logback03/Demo05.java
index f389d51..1d07119 100644
--- a/javaSE-day13/src/com/inmind/logback03/Demo05.java
+++ b/javaSE-day13/src/com/inmind/logback03/Demo05.java
@@ -16,10 +16,10 @@ public class Demo05 {
     public static void main(String[] args) {
         try {
 //            System.out.println("method方法开始执行了...");
-            LOGGER.info("method方法开始执行了...");
-            method(100, 2);
+                LOGGER.info("method方法开始执行了...");
+                method(100, 0);
 //            System.out.println("method方法执行成功了...");
-            LOGGER.info("method方法执行成功了...");
+                LOGGER.info("method方法执行成功了...");
         } catch (Exception e) {
 //            e.printStackTrace();
             LOGGER.error("java.lang.ArithmeticException: / by zero");
diff --git a/javaSE-day13/src/logback.xml b/javaSE-day13/src/logback.xml
index 45b1f72..1e08093 100644
--- a/javaSE-day13/src/logback.xml
+++ b/javaSE-day13/src/logback.xml
@@ -32,9 +32,9 @@
     </appender>
 
     <!--
-        1、控制日志的输出情况：如，开启日志，取消日志
+        1、控制日志的输出情况：如，开启日志 ALL，取消日志 OFF
     -->
-    <root level="debug">
+    <root level="ALL">
         <appender-ref ref="CONSOLE"/>
         <appender-ref ref="FILE" />
     </root>