diff --git a/src/dataANDcalc/java/LinkedList/CircleLinkedList.java b/src/dataANDcalc/java/LinkedList/CircleLinkedList.java
index 6211fdd..48388ce 100644
--- a/src/dataANDcalc/java/LinkedList/CircleLinkedList.java
+++ b/src/dataANDcalc/java/LinkedList/CircleLinkedList.java
@@ -61,6 +61,38 @@ public class CircleLinkedList {
     }
 
 
+    /**
+     * @param k
+     * @param m
+     * 优化改进约瑟夫队列
+     */
+    private void joseph(int k, int m){
+        JosephNode temp = first;
+        while (true){
+            if (temp.next == first){
+                break;
+            }
+            temp = temp.next;
+        }
+        for(int i = 0; i < k-1; i++){
+            temp = temp.next;
+            first = first.next;
+        }
+        while (true) {
+            if (temp == first){
+                break;
+            }
+            for(int i = 0; i < m-1; i++){
+                temp = temp.next;
+                first = first.next;
+            }
+            System.out.println(first.toString() + "出列");
+            first = first.next;
+            temp.next = first;
+        }
+    }
+
+
     public static void main(String[] args) {
         CircleLinkedList circleLinkedList = new CircleLinkedList();
         Scanner scan = new Scanner(System.in);
@@ -82,9 +114,11 @@ public class CircleLinkedList {
                 circleLinkedList.show();
             }
             if ("j".equals(handle)){
+                System.out.println("请输入开始位置:");
+                int k = scan.nextInt();
                 System.out.println("请输入出队报数数字:");
                 int m = scan.nextInt();
-                circleLinkedList.joseph(m);
+                circleLinkedList.joseph(k,m);
             }
         }
         scan.close();