Java讀取一個(gè)txt格式的文檔享用正則表達(dá)式匹配以下文檔會(huì)出現(xiàn)的字符這個(gè)正則應(yīng)該怎么寫(xiě)啊里面會(huì)有這種格式：\abc\{}_\%\都需要找出來(lái)在此謝謝各位前輩
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夢(mèng)里花落0921
TA貢獻(xiàn)1772條經(jīng)驗(yàn) 獲得超6個(gè)贊
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class RegexMatches
{
public static void main( String args[] ){
// 按指定模式在字符串查找
String line = "This order was placed for QT3000! OK?";
String pattern = "(\\D*)(\\d+)(.*)";
// 創(chuàng)建 Pattern 對(duì)象
Pattern r = Pattern.compile(pattern);
// 現(xiàn)在創(chuàng)建 matcher 對(duì)象
Matcher m = r.matcher(line);
if (m.find( )) {
System.out.println("Found value: " + m.group(0) );
System.out.println("Found value: " + m.group(1) );
System.out.println("Found value: " + m.group(2) );
System.out.println("Found value: " + m.group(3) );
} else {
System.out.println("NO MATCH");
}}
}
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