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Java ²Ù×÷Îı¾ ·â×°Àà

package com.sidi.card.util;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
 * ÓÃÓÚ¶ÔÎı¾µÄ²Ù×÷
 *
 * @author ÖìÖ¾½Ü
 *
 */
public class NoteOperate {
    // txtÎļþ·¾¶
    private String filePath;
    /**
     * ¹¹Ô캯Êý
     *
     * @param filePath
     *            Îı¾Îļþȫ·¾¶
     */
    public NoteOperate(String filePath) {
        this.filePath = filePath;
    }
    /**
     * ¹¹Ô캯Êý
     *
     * @param file
     *            ÐèÒª¶ÁÈ¡µÄÎı¾Îļþ
     */
    public NoteOperate(File file) {
        this.filePath = file.getPath();
    }
    /**
     * ÅжÏÎı¾ÎļþÊÇ·ñ´æÔÚ
     *
     * @return ´æÔÚ·µ»Øtrue ·ñÔò·µ»Øfalse
     */
    public boolean exists() {
        File file = new File(this.filePath);
        return file.exists();
    }
    /**
     * µÃµ½Õâ¸ötxtËùÓеÄÁеÄÊý¾Ý ¿ÕÐн«×Ô¶¯Ìø¹ý,²¢×Ô¶¯É¾³ýÎÄ×ÖǰºóµÄ¿Õ¸ñ
     *
     * @return List<String>
     * @throws IOException
     */
    public List<String&g


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