diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000000000000000000000000000000000000..7a9dfa044d022f5ca8cf9191e37fef926dd67f77
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "pwa-chrome",
+            "request": "launch",
+            "name": "Launch Chrome against localhost",
+            "url": "http://localhost:8080",
+            "webRoot": "${workspaceFolder}"
+        }
+    ]
+}
\ No newline at end of file
diff --git "a/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat" "b/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..fb6da59942290ce22ba5399709b55a5b4e11768d
--- /dev/null
+++ "b/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat"
@@ -0,0 +1,2 @@
+git config --global user.name "苏晓荔"
+git config --global user.email "1443874734@qq.com"
\ No newline at end of file
diff --git "a/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat" "b/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..ec6ee61962f2d109f4b5d6a984fa0532274d1213
--- /dev/null
+++ "b/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat"
@@ -0,0 +1,2 @@
+git branck 38
+git checkout 38
\ No newline at end of file
diff --git "a/3,\350\207\252\345\212\250\346\217\220\344\272\244.bat" "b/3,\350\207\252\345\212\250\346\217\220\344\272\244.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..0fbd52fa8111ae13721da1f2c119822552292813
--- /dev/null
+++ "b/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/Test/LinkedList.class b/Test/LinkedList.class
new file mode 100644
index 0000000000000000000000000000000000000000..3f2ccb48da8e7bb88cfab8e5821d9c060ba468bf
Binary files /dev/null and b/Test/LinkedList.class differ
diff --git a/Test/LinkedList.java b/Test/LinkedList.java
new file mode 100644
index 0000000000000000000000000000000000000000..e0d74f47fac58f2c39797aaa9244b13b9a37d2b9
--- /dev/null
+++ b/Test/LinkedList.java
@@ -0,0 +1,47 @@
+public class LinkedList <E> {
+    private Node head;
+	private Node tail;
+
+    public LinkedList() {
+      head = null;
+	  tail = null;
+    }
+
+    public void addToFront(E item) {
+        Node node = new Node(item);
+
+        if (this.head == null) {
+            this.head = node;
+			this.tail = this.head;
+        } else{
+            Node temp = head;
+            this.head = node;
+            this.head.next = temp;
+        }
+    }
+
+
+    public void addToRear(E item) {
+        Node newNode = new Node(item);
+        if (this.head == null) {
+            this.head = newNode;
+			this.tail = this.head;
+        } else {
+
+			Node temp = this.tail;
+			tail = newNode;
+			temp.next = tail;
+            
+        }
+    }
+
+    public void print() {
+        Node temp = this.head;
+        while(temp.next != null){
+            System.out.print(temp.item + " -> ");
+            temp = temp.next;
+        }
+        System.out.println(temp.item);
+    }
+}
+
diff --git a/Test/Main.class b/Test/Main.class
new file mode 100644
index 0000000000000000000000000000000000000000..acd5ba79cd19013b43688c117c0f04ebc61dbca7
Binary files /dev/null and b/Test/Main.class differ
diff --git a/Test/Main.java b/Test/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..a91ffa11e11038a146b54b7dc41f3be6de49e8b9
--- /dev/null
+++ b/Test/Main.java
@@ -0,0 +1,10 @@
+class Main {
+  public static void main(String[] args) {
+    LinkedList<Integer> ll = new LinkedList<Integer>();
+    ll.addToFront(1);
+	ll.addToFront(7);
+    ll.addToRear(3);
+	ll.addToRear(8);
+    ll.print();
+  }
+}
\ No newline at end of file
diff --git a/Test/Node.class b/Test/Node.class
new file mode 100644
index 0000000000000000000000000000000000000000..a383363383e004072772b0293411ecf05b408603
Binary files /dev/null and b/Test/Node.class differ
diff --git a/Test/Node.java b/Test/Node.java
new file mode 100644
index 0000000000000000000000000000000000000000..5f1555858f49dd1b3d668202d01aaf8b55124a9a
--- /dev/null
+++ b/Test/Node.java
@@ -0,0 +1,7 @@
+public class Node<E> {
+    E item;
+    Node<E> next = null;
+    Node(E item) {
+        this.item = item;
+    }
+}
\ No newline at end of file
diff --git a/Test02/LinkedList.class b/Test02/LinkedList.class
new file mode 100644
index 0000000000000000000000000000000000000000..202467e741c2844d4a03aa3bbf3435e2a306ed93
Binary files /dev/null and b/Test02/LinkedList.class differ
diff --git a/Test02/LinkedList.java b/Test02/LinkedList.java
new file mode 100644
index 0000000000000000000000000000000000000000..170220f0ddd1a0479af6072a7f5feebbeedc99a9
--- /dev/null
+++ b/Test02/LinkedList.java
@@ -0,0 +1,47 @@
+public class LinkedList <E> {
+    private Node head;
+	private Node tail;
+
+    public LinkedList() {
+      head = null;
+	  tail = null;
+    }
+
+    public void addToFront(E item) {
+        Node node = new Node(item);
+
+        if (this.head == null) {
+            this.head = node;
+			this.tail = this.head;
+        } else{
+            Node temp = head;
+            this.head = node;
+            this.head.next = temp;
+			temp.pre = this.head;
+        }
+    }
+
+    public void addToRear(E item) {
+        Node newNode = new Node(item);
+        if (this.head == null) {
+            this.head = newNode;
+			this.tail = this.head;
+        } else {
+            
+            Node temp = this.tail;
+			tail = newNode;
+			tail.pre = temp;
+			temp.next = tail;
+        }
+    }
+
+    public void print() {
+        Node temp = this.head;
+        while(temp.next != null){
+            System.out.print(temp.item + " -> ");
+            temp = temp.next;
+        }
+        System.out.println(temp.item);
+    }
+}
+
diff --git a/Test02/Main.class b/Test02/Main.class
new file mode 100644
index 0000000000000000000000000000000000000000..acd5ba79cd19013b43688c117c0f04ebc61dbca7
Binary files /dev/null and b/Test02/Main.class differ
diff --git a/Test02/Main.java b/Test02/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..7ff663e0340fe7b10068a186c52a5e57e2099b7f
--- /dev/null
+++ b/Test02/Main.java
@@ -0,0 +1,10 @@
+class Main {
+  public static void main(String[] args) {
+    LinkedList<Integer> ll = new LinkedList<Integer>();
+    ll.addToFront(1);
+    ll.addToFront(2);
+    ll.addToRear(3);
+	ll.addToRear(8);
+    ll.print();
+  }
+}
\ No newline at end of file
diff --git a/Test02/Node.class b/Test02/Node.class
new file mode 100644
index 0000000000000000000000000000000000000000..d5d0e569664ec23fdd06c248a33be2f4e3f1a48a
Binary files /dev/null and b/Test02/Node.class differ
diff --git a/Test02/Node.java b/Test02/Node.java
new file mode 100644
index 0000000000000000000000000000000000000000..ef186f85aaa659cb3dacbb507aec4ceaaf55e633
--- /dev/null
+++ b/Test02/Node.java
@@ -0,0 +1,8 @@
+public class Node<E> {
+    E item;
+    Node<E> next = null;
+	Node<E> pre = null;
+    Node(E item) {
+        this.item = item;
+    }
+}
\ No newline at end of file