diff --git a/README.md b/README.md
index 61efedc..d54c832 100644
--- a/README.md
+++ b/README.md
@@ -13,9 +13,12 @@ redtimer是本人纯手工精心编写的一个任务定时调度器，
 
 
 #### 安装使用教程
-
+```
+TimerExecutor timerExecutor = new TimerExecutor(1);
+timerExecutor.add(new TaskImpl("a1", new ScheduledExpres("0 2 * * *"));//定时每天2点执行
+timerExecutor.start();
 请看测试案例，以及阅读详细源码，所有的代码也就几百行；
-
+```
 #### 参与贡献
 你可以做这些
 1. Fork 本项目
diff --git a/src/test/java/com/lxyer/timer/TaskImpl.java b/src/test/java/com/lxyer/timer/TaskImpl.java
index 1f1bac0..549692f 100644
--- a/src/test/java/com/lxyer/timer/TaskImpl.java
+++ b/src/test/java/com/lxyer/timer/TaskImpl.java
@@ -15,20 +15,11 @@ public class TaskImpl extends AbstractTask {
 
     @Override
     public void run() {
-        System.out.println("----");
-        System.out.println(new SimpleDateFormat("0: yyyy-MM-dd HH:mm:ss").format(theTime()));
-        System.out.println(new SimpleDateFormat("1: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("2: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("3: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("4: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("5: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("6: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("7: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("8: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("9: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("10: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("11: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("12: yyyy-MM-dd HH:mm:ss").format(nextTime()));
-        System.out.println(new SimpleDateFormat("13: yyyy-MM-dd HH:mm:ss").format(nextTime()));
+        ThreadLocal<SimpleDateFormat> local = new ThreadLocal<>();
+        SimpleDateFormat sdf = local.get();
+        if (sdf == null){
+            sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        }
+        System.out.printf("执行任务:%s now:%s, %n", name, sdf.format(System.currentTimeMillis()));
     }
 }
diff --git a/src/test/java/com/lxyer/timer/TimerTest.java b/src/test/java/com/lxyer/timer/TimerTest.java
index 8f14f4a..7ac39df 100644
--- a/src/test/java/com/lxyer/timer/TimerTest.java
+++ b/src/test/java/com/lxyer/timer/TimerTest.java
@@ -21,19 +21,7 @@ public class TimerTest {
     @Test
     public void t2(){
         TimerExecutor timerExecutor = new TimerExecutor(1);
-
-        timerExecutor.add(new TaskImpl("a1", new ScheduledExpres(LocalDateTime.now(), "1-40 * * * *")) {
-            @Override
-            public void run() {
-                ThreadLocal<SimpleDateFormat> local = new ThreadLocal<>();
-                SimpleDateFormat sdf = local.get();
-                if (sdf == null){
-                    sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
-                }
-                System.out.printf("执行任务:%s now:%s, %n", name, sdf.format(System.currentTimeMillis()));
-            }
-        });
-
+        timerExecutor.add(new TaskImpl("a1", new ScheduledExpres(LocalDateTime.now(), "1-40/2 * * * *")));//1-40，定时每分钟执行
         timerExecutor.start();
 
         try {