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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="src" path="gen"/>
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<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
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<classpathentry kind="output" path="bin"/>
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</classpath>
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>Sample2_5</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>com.android.ide.eclipse.adt.ApkBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
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<nature>org.eclipse.jdt.core.javanature</nature>
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</natures>
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</projectDescription>
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#Wed Jun 22 19:48:38 CST 2011
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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
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org.eclipse.jdt.core.compiler.compliance=1.5
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org.eclipse.jdt.core.compiler.source=1.5
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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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android:versionCode="1"
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android:versionName="1.0" package="com.bn.pp5">
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<application android:icon="@drawable/icon" android:label="@string/app_name">
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<activity android:name=".Sample2_5_Activity"
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android:label="@string/app_name">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>
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@@ -0,0 +1,11 @@
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# This file is automatically generated by Android Tools.
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# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
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#
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# This file must be checked in Version Control Systems.
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#
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# To customize properties used by the Ant build system use,
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# "build.properties", and override values to adapt the script to your
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# project structure.
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# Project target.
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target=android-7
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/* AUTO-GENERATED FILE. DO NOT MODIFY.
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*
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* This class was automatically generated by the
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* aapt tool from the resource data it found. It
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* should not be modified by hand.
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*/
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package com.bn.pp5;
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public final class R {
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public static final class attr {
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}
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public static final class drawable {
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public static final int icon=0x7f020000;
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}
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public static final class id {
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public static final int Button01=0x7f050003;
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public static final int EditText01=0x7f050002;
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public static final int EditText02=0x7f050005;
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public static final int LinearLayout01=0x7f050000;
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public static final int ScrollView01=0x7f050004;
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public static final int TextView01=0x7f050001;
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}
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public static final class layout {
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public static final int main=0x7f030000;
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}
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public static final class string {
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public static final int app_name=0x7f040001;
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public static final int hello=0x7f040000;
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}
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}
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After Width: | Height: | Size: 2.5 KiB |
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
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>
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<TextView
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android:text="文件IO--访问SD卡"
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android:layout_width="fill_parent"
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android:textSize="16dip"
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android:layout_height="wrap_content"
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android:gravity="center"
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/>
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<LinearLayout
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android:id="@+id/LinearLayout01"
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android:orientation="horizontal"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content">
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<TextView
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android:text="文件名："
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android:textSize="18dip"
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android:id="@+id/TextView01"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content">
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</TextView>
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<EditText
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android:text="AndroidIO.txt"
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android:id="@+id/EditText01"
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android:singleLine="true"
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android:layout_weight="1"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content">
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</EditText>
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<Button
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android:text="打开文件"
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android:id="@+id/Button01"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content">
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</Button>
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</LinearLayout>
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<ScrollView
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android:id="@+id/ScrollView01"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent">
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<EditText
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android:text=""
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android:id="@+id/EditText02"
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android:editable="false"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent">
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</EditText>
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</ScrollView>
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</LinearLayout>
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@@ -0,0 +1,5 @@
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<?xml version="1.0" encoding="utf-8"?>
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<resources>
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<string name="hello">Hello World, Sample3_1_Activity!</string>
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<string name="app_name">Sample2_5</string>
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</resources>
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@@ -0,0 +1,43 @@
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package com.bn.pp5;
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import java.io.File; //引入相关包
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import java.io.FileInputStream;
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import android.app.Activity;
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import android.os.Bundle;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.Toast;
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public class Sample2_5_Activity extends Activity { //创建Activity
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@Override
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public void onCreate(Bundle savedInstanceState) { //重写onCreate方法
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main); //设置layout
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Button ok=(Button)this.findViewById(R.id.Button01); //获取打开Button
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ok.setOnClickListener //为打开按钮添加监听器
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( new OnClickListener()
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{ public void onClick(View v)
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{ EditText et1=(EditText)findViewById(R.id.EditText01);
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//调用loadText方法获取对应文件名的文件
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String nr=loadText(et1.getText().toString().trim());
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EditText et2=(EditText)findViewById(R.id.EditText02);
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//设置显示框内容
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et2.setText(nr);
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}});}
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public String loadText(String name) //加载SD卡文件方法
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{ String nr=null; //内容字符串
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try
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{ File f=new File("/sdcard/"+name); //创建对应文件
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byte[] buff=new byte[(int) f.length()]; //创建响应大小的byte数组
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FileInputStream fis=new FileInputStream(f);
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fis.read(buff); //读入文件
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fis.close(); //关闭输入流
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nr=new String(buff,"utf-8"); //转码生成字符串
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nr=nr.replaceAll("\\r\\n","\n");} //替换换行符
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catch (Exception e)
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{ //没有找到文件提示
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Toast.makeText(getBaseContext(), "对不起，没有找到指定文件。", Toast.LENGTH_LONG).show(); }
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return nr; //返回内容字符串
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}}
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