Merge pull request #806 from Swag7zai/master

# 实验二修改版

students/com1713071002108/Com1713071002108activity.java

@@ -0,0 +1,6 @@
+package edu.hzuapps.androidlabs.com1713071002108;
+
+public class Com1713071002108Activity{
+public static void main(String[] args){
+System.out.printin("hello world");}
+}

students/com1713071002108/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.myapplication">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

students/com1713071002108/app/src/main/java/edu/hzuapps/androidlabs/Com1713071002108/Com1713071002108Activity.java

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+package edu.hzuapps.androidlabs.com1713071002108;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+
+
+import com.example.myapplication.R;
+
+public class Com1713071002108Activity extends AppCompatActivity{ protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.Com_1713071002108_activity);
+}
+}

students/com1713071002108/app/src/main/res/layout/Com_1713071002108_activity.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</android.support.constraint.ConstraintLayout>

students/com1713071002108/app/src/main/res/values/strings.xml

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+<resources>
+    <string name="app_name">My Application</string>
+    <string name="name" >猜拳游戏</string>
+</resources>