diff --git a/resources/Sublime/Anaconda.sublime-settings b/resources/Sublime/Anaconda.sublime-settings
index 4eb9906..033d41e 100644
--- a/resources/Sublime/Anaconda.sublime-settings
+++ b/resources/Sublime/Anaconda.sublime-settings
@@ -1,12 +1,12 @@
 {
-    "anaconda_linter_underlines": false,
+    // "anaconda_linter_underlines": false,
     "auto_formatting": true,
-    "complete_all_parameters": true,
-    "complete_parameters": true,
+    // "complete_all_parameters": true,
+    // "complete_parameters": true,
     "pep8_ignore": [
         "E501"
     ],
-    "python_interpreter": "python",
+    "python_interpreter": "D:\\works\\Python35\\python.exe",
     "suppress_explicit_completions": true,
     "suppress_word_completions": true
 }
\ No newline at end of file
diff --git a/src/main/java/osc/git/eh3/dfd.java b/src/main/java/osc/git/eh3/dfd.java
new file mode 100644
index 0000000..6278fd3
--- /dev/null
+++ b/src/main/java/osc/git/eh3/dfd.java
@@ -0,0 +1,58 @@
+package osc.git.eh3;
+
+/**
+ * Created by lixiangrong on 2016/12/23.
+ */
+public class dfd {
+    public static void main(String[] args) {
+
+    }
+    public void printCircle(int[][] matrix, int startX, int startY, int endX, int endY) {
+        // only one column left
+        if (startY == endY) {
+            for (int i = startX; i <= endX; i++ ) {
+                System.out.println(matrix[i][endY]);
+            }
+            return;
+        }
+        // only one row left
+        if (startX == endX) {
+            for (int i = startY; i <= endY; i++ ) {
+                System.out.println(matrix[startX][i]);
+            }
+            return;
+        }
+        for (int i = startY; i < endY; i++ ) {
+            System.out.println(matrix[startX][i]);
+        }
+        for (int i = startX; i < endX; i++ ) {
+            System.out.println(matrix[i][endY]);
+        }
+        for (int i = endY; i > startY; i-- ) {
+            System.out.println(matrix[endX][i]);
+        }
+        for (int i = endX; i > startX; i-- ) {
+            System.out.println(matrix[i][startY]);
+        }
+
+    }
+
+    public void printMatrix(int[][] matrix) {
+
+        if (matrix == null) {
+            return;
+        }
+        int startX = 0;
+        int startY = 0;
+        int endY = matrix[0].length - 1;
+        int endX = matrix.length - 1;
+
+        while ((startX <= endX) && (startY <= endY)) {
+            printCircle(matrix, startX, startY, endX, endY);
+            startX++;
+            startY++;
+            endX--;
+            endY--;
+        }
+    }
+}
diff --git a/src/main/java/osc/git/eh3/test/TestDecodeHex.java b/src/main/java/osc/git/eh3/test/TestDecodeHex.java
index edff179..6e655f3 100644
--- a/src/main/java/osc/git/eh3/test/TestDecodeHex.java
+++ b/src/main/java/osc/git/eh3/test/TestDecodeHex.java
@@ -8,7 +8,7 @@ import org.apache.commons.codec.binary.Hex;
 public class TestDecodeHex {
     // 十六进制转字符串
     public static void main(String[] args) throws Exception {
-        String data = "E7A7AFE69E81E58AA0E5BFABE7A791E68A80";
+        String data = "E88194E7B3BBE4BABAE6B7BBE58AA0E5A4B1E8B4A5";
         System.out.println(new String(Hex.decodeHex(data.toCharArray()), "utf-8"));
 
         System.out.println(Hex.encodeHexString("测试粗我".getBytes()));
diff --git a/src/main/java/osc/git/eh3/thread/TestSingleThreadExecutor.java b/src/main/java/osc/git/eh3/thread/TestSingleThreadExecutor.java
new file mode 100644
index 0000000..0790c70
--- /dev/null
+++ b/src/main/java/osc/git/eh3/thread/TestSingleThreadExecutor.java
@@ -0,0 +1,40 @@
+package osc.git.eh3.thread;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+class MyThread extends Thread {
+    private String name;
+
+
+    public MyThread(String name) {
+        this.name = name;
+    }
+
+
+    @Override
+    public void run() {
+        try {
+            Thread.sleep(500);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        System.out.println(name + "正在进行。。。。。");
+    }
+}
+
+
+public class TestSingleThreadExecutor {
+    public static void main(String[] args) {
+        ExecutorService executorService = Executors.newSingleThreadExecutor();
+        Thread t1 = new MyThread("t1");
+        Thread t2 = new MyThread("t2");
+        Thread t3 = new MyThread("t3");
+        Thread t4 = new MyThread("t4");
+        executorService.execute(t1);
+        executorService.execute(t2);
+        executorService.execute(t3);
+        executorService.execute(t4);
+        executorService.shutdown();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/osc/git/eh3/thread/ThreadPoolExecutorTest.java b/src/main/java/osc/git/eh3/thread/ThreadPoolExecutorTest.java
new file mode 100644
index 0000000..0552bad
--- /dev/null
+++ b/src/main/java/osc/git/eh3/thread/ThreadPoolExecutorTest.java
@@ -0,0 +1,27 @@
+package osc.git.eh3.thread;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+/**
+ * Created by lixiangrong on 2016/12/22.
+ */
+public class ThreadPoolExecutorTest {
+    public static void main(String[] args) {
+        ExecutorService cachedThreadPool = Executors.newCachedThreadPool();
+        for (int i = 0; i < 10; i++) {
+            final int index = i;
+            //try {
+            //    Thread.sleep(index * 1000);
+            //} catch (InterruptedException e) {
+            //    e.printStackTrace();
+            //}
+            cachedThreadPool.execute (new Runnable() {
+                public void run() {
+                    //System.out.println(index);
+                    System.out.println(Thread.currentThread().getName());
+                }
+            });
+        }
+    }
+}