JAVA²Ù×÷XMLµÄÍêÕûÀý×Ó——W3C DOMƪ
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¼ÙÉèÓÐXMLÎļþ£ºtest1.xml
<?xml version="1.0" encoding="UTF-8"?>
<books>
<book>
<name>¹þÀï²¨ÌØ</name>
<price>10</price>
<memo>ÕâÊÇÒ»±¾ºÜºÃ¿´µÄÊé¡£</memo>
</book>
<book id="B02">
<name>Èý¹úÑÝÒå</name>
<price>10</price>
<memo>ËÄ´óÃûÖøÖ®Ò»¡£</memo>
</book>
<book id="B03">
<name>Ë®ä°</name>
<price>6</price>
<memo>ËÄ´óÃûÖøÖ®Ò»¡£</memo>
</book>
<book id="B04">
<name>ºìÂ¥</name>
<price>5</price>
<memo>ËÄ´óÃûÖøÖ®Ò»¡£</memo>
</book>
</books>
ÏÂÃæÊÇΪTest.java
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.w3c.dom.*;
import org.xml.sax.SAXException;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.*;
import javax.xml.xpath.*;
public class Test ...{
public static void main(String[] args) ...{
DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
Element theBook=null, theElem=null, root=null;
try ...{
factory.setIgnoringElementContentWhitespace(true);
DocumentBuilder db=factory.newDocumentBuilder();
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(a) >>>ÓÒÒÆ£¬¸ßλÓÃ0Ìî³ä£»
int a = 14;
int b = 2;
System.out.println(a >>> b);// 3
int c = -14;
int d = 2;
System.out.println(c >>> d);// 1073741820
(b) >>·ûºÅλ²»±ä£¬ÆäËûλÓÒÒÆ£¬¸ßλÓÃ0Ìî³ä£¬Æä½á¹ûÓëa/2bÏàͬ£»
int a = 14;
int b = 2;
Sy ......
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Éèint arr[]={6,7,8,9,10};
int *ptr=arr;
*(ptr++)+=123;
printf(£¢%d,%d£¢,*ptr,*(++ptr));
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http://download.chinaitlab.com/program/files/12907.html
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Runtime.getRuntime().exec(command)
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Runtime.getRuntime().exec("ls");
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