diff --git a/demo.java b/demo.java
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git "a/git_bat/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat" "b/git_bat/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..e223ae1fd93db25fa395929a0119f1405e264feb
--- /dev/null
+++ "b/git_bat/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat"
@@ -0,0 +1,2 @@
+git config --global user.name "yelion"
+git config --global user.email "yelion.h@qq.com"
\ No newline at end of file
diff --git "a/git_bat/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat" "b/git_bat/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..8c6e334a255cf3cd79a51e03fe8d15f43f6b5865
--- /dev/null
+++ "b/git_bat/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat"
@@ -0,0 +1,2 @@
+git branck 15
+git checkout 15
\ No newline at end of file
diff --git "a/git_bat/3,\350\207\252\345\212\250\346\217\220\344\272\244.bat" "b/git_bat/3,\350\207\252\345\212\250\346\217\220\344\272\244.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..0fbd52fa8111ae13721da1f2c119822552292813
--- /dev/null
+++ "b/git_bat/3,\350\207\252\345\212\250\346\217\220\344\272\244.bat"
@@ -0,0 +1,3 @@
+git add .
+git commit -m "AutoPush"
+git push
\ No newline at end of file
diff --git a/src/datastruct/linklist/LinkList.java b/src/datastruct/linklist/LinkList.java
new file mode 100644
index 0000000000000000000000000000000000000000..07d72b38b07b02d746894de69fc3a4c2bfee7a1f
--- /dev/null
+++ b/src/datastruct/linklist/LinkList.java
@@ -0,0 +1,59 @@
+package datastruct.linklist;
+
+public class LinkList {
+
+    private Node head;
+
+    public void addToRear(Object data){
+        Node node = new Node(data);
+        Node head = this.head;
+        while (true){
+            if (head.getNext()==null){
+                head.setNext(node);
+                System.out.println("尾部添加：" + head.toString());
+                return;
+            }
+        }
+    }
+
+    public void addToFront(Object data){
+        Node node = new Node(data);
+        node.setNext(this.head);
+        this.head = node;
+        System.out.println("头部添加：" + head.toString());
+        return;
+    }
+
+    public void removeItem(Object object){
+        Node head = this.head;
+        if (head.getData().equals(object)){
+            this.head = head.getNext();
+            System.out.println("已删除：" + head.toString());
+            return;
+        }
+        while (true){
+            if (head.getNext().getData().equals(object)){
+                System.out.println("已删除：" + head.getNext());
+                head.setNext(head.getNext().getNext());
+                return;
+            }
+            head = head.getNext();
+        }
+    }
+
+    public LinkList(Object data) {
+        this.head = new Node(data);
+    }
+
+    @Override
+    public String toString(){
+        Node head = this.head;
+        StringBuilder printStr = new StringBuilder("链表：");
+        while (head!=null){
+            printStr.append(head.getData().toString());
+            printStr.append(" --> ");
+            head = head.getNext();
+        }
+        return printStr.toString();
+    }
+}
diff --git a/src/datastruct/linklist/Node.java b/src/datastruct/linklist/Node.java
new file mode 100644
index 0000000000000000000000000000000000000000..2b0e955b5bad8efaa8369cb871e8ff96a9b2edf7
--- /dev/null
+++ b/src/datastruct/linklist/Node.java
@@ -0,0 +1,38 @@
+package datastruct.linklist;
+
+public class Node {
+    private Object data;
+    private Node next;
+
+    public Object getData() {
+        return data;
+    }
+
+    public void setData(Object data) {
+        this.data = data;
+    }
+
+    public Node getNext() {
+        return next;
+    }
+
+    public void setNext(Node next) {
+        this.next = next;
+    }
+
+    public Node(Object data) {
+        this.data = data;
+    }
+
+    public Node(Object data, Node next) {
+        this.data = data;
+        this.next = next;
+    }
+
+    @Override
+    public String toString() {
+        return "Node{" +
+                "data=" + data +
+                '}';
+    }
+}
diff --git a/src/datastruct/linklist/TryToRun.java b/src/datastruct/linklist/TryToRun.java
new file mode 100644
index 0000000000000000000000000000000000000000..67d4d46a30aae30edc98ac9a6c0965b7bb9b451a
--- /dev/null
+++ b/src/datastruct/linklist/TryToRun.java
@@ -0,0 +1,12 @@
+package datastruct.linklist;
+
+public class TryToRun {
+    public static void main(String[] args) {
+        //没有多次测试，若有问题及时反馈
+        LinkList linkList = new LinkList("a");
+        linkList.addToRear("b");
+        linkList.addToFront("c");
+        linkList.removeItem("a");
+        System.out.println(linkList.toString());
+    }
+}
diff --git a/LinkedList.java b/src/demo/LinkedList.java
similarity index 100%
rename from LinkedList.java
rename to src/demo/LinkedList.java
diff --git a/Main.java b/src/demo/Main.java
similarity index 100%
rename from Main.java
rename to src/demo/Main.java
diff --git a/Node.java b/src/demo/Node.java
similarity index 77%
rename from Node.java
rename to src/demo/Node.java
index ed7a3524e3c608d2a479f484e240452ad34c5a51..bae016f2294e20df33bf472fe58a98cf4d800773 100644
--- a/Node.java
+++ b/src/demo/Node.java
@@ -1,6 +1,6 @@
 public class Node<E> {
     E item;
-    Node<E> next = null;
+    Node<E> next =null;
 
     Node(E item) {
         this.item = item;