diff --git a/.gitignore b/.gitignore
index ec55baf87d..2a5296f902 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,4 @@
 *.class
-
 # Mobile Tools for Java (J2ME)
 .mtj.tmp/
 
@@ -14,3 +13,9 @@ hs_err_pid*
 #ide config
 .metadata
 .recommenders
+.idea/
+*.iml
+rebel.*
+.rebel.*
+
+target
diff --git a/group17/1204187480/code/homework/basic/pom.xml b/group17/1204187480/code/homework/basic/pom.xml
new file mode 100644
index 0000000000..039af72d42
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/pom.xml
@@ -0,0 +1,12 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>basic</artifactId>
+    <parent>
+        <groupId>com.coding</groupId>
+        <artifactId>parent</artifactId>
+        <version>1.0-SNAPSHOT</version>
+        <relativePath>../parent/pom.xml</relativePath>
+    </parent>
+
+</project>
\ No newline at end of file
diff --git a/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/ArrayList.java b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/ArrayList.java
new file mode 100644
index 0000000000..35e9a2a05e
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/ArrayList.java
@@ -0,0 +1,85 @@
+package com.coding.basic;
+
+import java.util.Arrays;
+
+public class ArrayList implements List {
+
+    private int size = 0;
+
+    private Object[] elementData = new Object[100];
+
+    private int length() {
+        return elementData.length;
+    }
+
+    private static final int ENLARGE_LENGTH = 100;
+
+    private Object[] enlarge(Object[] origin) {
+        return Arrays.copyOf(origin, origin.length + ENLARGE_LENGTH);
+    }
+
+    private void enLargeElementData() {
+        if (size == length()) {
+            elementData = enlarge(elementData);
+        }
+    }
+
+    public void add(Object o) {
+        enLargeElementData();
+        elementData[size] = o;
+        size++;
+    }
+
+    public void add(int index, Object o) {
+        checkIndex(index);
+        enLargeElementData();
+        // 备份 index 处及后面的数据
+        Object[] elementsBehindIndex = backBehindElements(elementData, index);
+        // 给index处 设值
+        elementData[index] = o;
+        // 追加 备份的数据
+        appendElement(elementData, index, elementsBehindIndex);
+        size++;
+    }
+
+    private void appendElement(Object[] origin, int pos, Object[] append) {
+        System.arraycopy(append, 0, origin, pos, append.length);
+    }
+
+    private Object[] backBehindElements(Object[] elementData, int index) {
+        int backSize = size - index;
+        Object[] back = new Object[backSize];
+        System.arraycopy(elementData, index, back, 0, backSize);
+        return back;
+    }
+
+    public Object get(int index) {
+        checkIndex(index);
+        return elementData[index];
+    }
+
+    private void checkIndex(int index) {
+        if (index < 0 || index >= size) {
+            throw new ArrayIndexOutOfBoundsException(String.format("index=%s, size=%s", index, size));
+        }
+    }
+
+    public Object remove(int index) {
+        checkIndex(index);
+        Object[] back = backBehindElements(elementData, index + 1);
+        System.arraycopy(back, 0, elementData, index, back.length);
+        Object ret = elementData[index];
+        elementData[index] = null;
+        size--;
+        return ret;
+    }
+
+    public int size() {
+        return size;
+    }
+
+    public Iterator iterator() {
+        return null;
+    }
+
+}
diff --git a/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/BinaryTreeNode.java b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/BinaryTreeNode.java
new file mode 100644
index 0000000000..d7ac820192
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/BinaryTreeNode.java
@@ -0,0 +1,32 @@
+package com.coding.basic;
+
+public class BinaryTreeNode {
+	
+	private Object data;
+	private BinaryTreeNode left;
+	private BinaryTreeNode right;
+	
+	public Object getData() {
+		return data;
+	}
+	public void setData(Object data) {
+		this.data = data;
+	}
+	public BinaryTreeNode getLeft() {
+		return left;
+	}
+	public void setLeft(BinaryTreeNode left) {
+		this.left = left;
+	}
+	public BinaryTreeNode getRight() {
+		return right;
+	}
+	public void setRight(BinaryTreeNode right) {
+		this.right = right;
+	}
+	
+	public BinaryTreeNode insert(Object o){
+		return  null;
+	}
+	
+}
diff --git a/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Iterator.java b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Iterator.java
new file mode 100644
index 0000000000..06ef6311b2
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Iterator.java
@@ -0,0 +1,7 @@
+package com.coding.basic;
+
+public interface Iterator {
+	public boolean hasNext();
+	public Object next();
+
+}
diff --git a/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/LinkedList.java b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/LinkedList.java
new file mode 100644
index 0000000000..e2c4e5e795
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/LinkedList.java
@@ -0,0 +1,46 @@
+package com.coding.basic;
+
+public class LinkedList implements List {
+	
+	private Node head;
+	
+	public void add(Object o){
+		
+	}
+	public void add(int index , Object o){
+		
+	}
+	public Object get(int index){
+		return null;
+	}
+	public Object remove(int index){
+		return null;
+	}
+	
+	public int size(){
+		return -1;
+	}
+	
+	public void addFirst(Object o){
+		
+	}
+	public void addLast(Object o){
+		
+	}
+	public Object removeFirst(){
+		return null;
+	}
+	public Object removeLast(){
+		return null;
+	}
+	public Iterator iterator(){
+		return null;
+	}
+	
+	
+	private static  class Node{
+		Object data;
+		Node next;
+		
+	}
+}
diff --git a/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/List.java b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/List.java
new file mode 100644
index 0000000000..10d13b5832
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/List.java
@@ -0,0 +1,9 @@
+package com.coding.basic;
+
+public interface List {
+	public void add(Object o);
+	public void add(int index, Object o);
+	public Object get(int index);
+	public Object remove(int index);
+	public int size();
+}
diff --git a/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Queue.java b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Queue.java
new file mode 100644
index 0000000000..36e516e266
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Queue.java
@@ -0,0 +1,19 @@
+package com.coding.basic;
+
+public class Queue {
+	
+	public void enQueue(Object o){		
+	}
+	
+	public Object deQueue(){
+		return null;
+	}
+	
+	public boolean isEmpty(){
+		return false;
+	}
+	
+	public int size(){
+		return -1;
+	}
+}
diff --git a/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Stack.java b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Stack.java
new file mode 100644
index 0000000000..a5a04de76d
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/main/java/com/coding/basic/Stack.java
@@ -0,0 +1,22 @@
+package com.coding.basic;
+
+public class Stack {
+	private ArrayList elementData = new ArrayList();
+	
+	public void push(Object o){		
+	}
+	
+	public Object pop(){
+		return null;
+	}
+	
+	public Object peek(){
+		return null;
+	}
+	public boolean isEmpty(){
+		return false;
+	}
+	public int size(){
+		return -1;
+	}
+}
diff --git a/group17/1204187480/code/homework/basic/src/test/java/com/coding/api/ArraysTest.java b/group17/1204187480/code/homework/basic/src/test/java/com/coding/api/ArraysTest.java
new file mode 100644
index 0000000000..eb41a7e262
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/test/java/com/coding/api/ArraysTest.java
@@ -0,0 +1,22 @@
+package com.coding.api;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Arrays;
+
+/**
+ * Created by luoziyihao on 2/25/17.
+ */
+public class ArraysTest {
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+
+    @Test
+    public void testCopyOf(){
+        Object[] a = new Object[]{1, 2, 3, 4};
+        Object[] b = Arrays.copyOf(a, 10);
+        logger.info("a={}, b={}", Arrays.toString(a), Arrays.toString(b));
+    }
+}
diff --git a/group17/1204187480/code/homework/basic/src/test/java/com/coding/api/SystemTest.java b/group17/1204187480/code/homework/basic/src/test/java/com/coding/api/SystemTest.java
new file mode 100644
index 0000000000..efc4022378
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/test/java/com/coding/api/SystemTest.java
@@ -0,0 +1,24 @@
+package com.coding.api;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Arrays;
+
+/**
+ * Created by luoziyihao on 2/25/17.
+ */
+public class SystemTest {
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+        @Test
+    public void testArrayCopy() {
+        int[] a = new int[]{1, 2, 3, 4, 5, 6, 7};
+        int[] b = new int[]{11, 22, 33, 44, 55, 66, 77};
+        System.arraycopy(a, 2, b, 4, 3);
+        logger.info("b={}", Arrays.toString(b));
+
+    }
+}
diff --git a/group17/1204187480/code/homework/basic/src/test/java/com/coding/basic/ArrayListTest.java b/group17/1204187480/code/homework/basic/src/test/java/com/coding/basic/ArrayListTest.java
new file mode 100644
index 0000000000..9241fe72da
--- /dev/null
+++ b/group17/1204187480/code/homework/basic/src/test/java/com/coding/basic/ArrayListTest.java
@@ -0,0 +1,35 @@
+package com.coding.basic;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * Created by luoziyihao on 2/25/17.
+ */
+public class ArrayListTest {
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+
+    private List list = new ArrayList();
+
+    @Before
+    public void before() {
+
+    }
+
+    @Test
+    public void add() throws Exception {
+        list.add(1);
+    }
+
+    @Test
+    public void get() throws Exception {
+        add();
+        logger.info("{}", list.get(0));
+    }
+
+}
\ No newline at end of file
diff --git a/group17/1204187480/code/homework/parent/pom.xml b/group17/1204187480/code/homework/parent/pom.xml
new file mode 100644
index 0000000000..9d29a4d93e
--- /dev/null
+++ b/group17/1204187480/code/homework/parent/pom.xml
@@ -0,0 +1,95 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.coding</groupId>
+    <artifactId>parent</artifactId>
+    <packaging>pom</packaging>
+    <version>1.0-SNAPSHOT</version>
+    <url>https://github.com/luoziyihao/coding2017</url>
+
+    <properties>
+        <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <jdk.version>1.8</jdk.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven-compiler-plugin.version>3.0</maven-compiler-plugin.version>
+        <logback-classic.version>1.1.7</logback-classic.version>
+        <commons-logging.version>1.2</commons-logging.version>
+        <log4j.version>1.2.17</log4j.version>
+        <junit.version>4.12</junit.version>
+    </properties>
+
+    <dependencies>
+        <!-- 日志 -->
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>${logback-classic.version}</version>
+        </dependency>
+        <!-- 配置所有依赖库的日志依赖 start-->
+        <dependency>
+            <groupId>commons-logging</groupId>
+            <artifactId>commons-logging</artifactId>
+            <version>${commons-logging.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+            <version>${log4j.version}</version>
+        </dependency>
+        <!-- 配置所有依赖库的日志依赖 end-->
+        <!-- 测试 -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+        </dependency>
+    </dependencies>
+
+    <pluginRepositories>
+        <pluginRepository>
+            <id>alimaven</id>
+            <name>aliyun maven</name>
+            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
+            <releases>
+                <enabled>true</enabled>
+            </releases>
+            <snapshots>
+                <enabled>true</enabled>
+            </snapshots>
+        </pluginRepository>
+    </pluginRepositories>
+    <repositories>
+        <repository>
+            <id>alimaven</id>
+            <name>aliyun maven</name>
+            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
+            <releases>
+                <enabled>true</enabled>
+            </releases>
+            <snapshots>
+                <enabled>true</enabled>
+            </snapshots>
+        </repository>
+    </repositories>
+
+    <build>
+        <finalName>${project.artifactId}</finalName>
+        <plugins>
+            <!-- 编译插件 制定编译级别 -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
\ No newline at end of file
diff --git a/group17/1204187480/code/homework/pom.xml b/group17/1204187480/code/homework/pom.xml
new file mode 100644
index 0000000000..e939b51bd0
--- /dev/null
+++ b/group17/1204187480/code/homework/pom.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.coding</groupId>
+    <artifactId>coding2017</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>pom</packaging>
+    <modules>
+        <module>parent</module>
+        <module>basic</module>
+    </modules>
+
+</project>
diff --git a/group17/876385982/.classpath b/group17/876385982/.classpath
new file mode 100644
index 0000000000..fb5011632c
--- /dev/null
+++ b/group17/876385982/.classpath
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/group17/876385982/.gitignore b/group17/876385982/.gitignore
new file mode 100644
index 0000000000..ae3c172604
--- /dev/null
+++ b/group17/876385982/.gitignore
@@ -0,0 +1 @@
+/bin/
diff --git a/group17/876385982/.project b/group17/876385982/.project
new file mode 100644
index 0000000000..4062c6c28f
--- /dev/null
+++ b/group17/876385982/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>876385982</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/group17/876385982/src/test/Test.java b/group17/876385982/src/test/Test.java
new file mode 100644
index 0000000000..b023a3ea07
--- /dev/null
+++ b/group17/876385982/src/test/Test.java
@@ -0,0 +1,10 @@
+package test;
+
+public class Test {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		System.out.println("Test!");
+	}
+
+}
diff --git "a/group17/article/\345\206\231\344\270\200\347\257\207\346\226\207\347\253\240\344\273\213\347\273\215cpu, \345\206\205\345\255\230, \347\243\201\347\233\230, \346\214\207\344\273\244\344\273\245\345\217\212\344\273\226\344\273\254\344\271\213\351\227\264\347\232\204\345\205\263\347\263\273_20170226.md" "b/group17/article/\345\206\231\344\270\200\347\257\207\346\226\207\347\253\240\344\273\213\347\273\215cpu, \345\206\205\345\255\230, \347\243\201\347\233\230, \346\214\207\344\273\244\344\273\245\345\217\212\344\273\226\344\273\254\344\271\213\351\227\264\347\232\204\345\205\263\347\263\273_20170226.md"
new file mode 100644
index 0000000000..14217b5f64
--- /dev/null
+++ "b/group17/article/\345\206\231\344\270\200\347\257\207\346\226\207\347\253\240\344\273\213\347\273\215cpu, \345\206\205\345\255\230, \347\243\201\347\233\230, \346\214\207\344\273\244\344\273\245\345\217\212\344\273\226\344\273\254\344\271\213\351\227\264\347\232\204\345\205\263\347\263\273_20170226.md"	
@@ -0,0 +1,56 @@
+# 写一篇文章介绍cpu, 内存, 磁盘, 指令以及他们之间的关系
+
+## 须知
+---
+
+交作业时请在QQ 号后面填上各自的文章链接, 比如:
+
+51075907 http://m.blog.csdn.net/article/details?id=57083764
+
+## 文章
+---
+
+1204187480
+
+102228177
+
+876385982 http://www.totoro-fly.com/?p=59
+
+785396327
+
+1059107701
+
+240094626
+
+82427129 
+
+296910598
+
+1264835468
+
+516886559
+
+1282579502
+
+614982500
+
+865797761
+
+1540186032
+
+176653813
+
+116665530
+
+51075907 http://m.blog.csdn.net/article/details?id=57083764
+
+1158154002
+
+345450234
+
+919764878
+
+1368331120
+
+517970312
+
