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Homephp教程php手册php、js、java的正则替换文本方式制作模板内容输出

php、js、java的正则替换文本方式制作模板内容输出

Jun 13, 2016 am 10:54 AM
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在制作模板内容输出时,很经常会使用之类的占位符,用正则的方式很方便替换这个内容,工作中只接触到java、php、js,三种语言的简单的实现方式:

java版

import java.util.HashMap;

import java.util.Map;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

 

public class TestRex {

    public static void main(String[] args) {

        Map map = new HashMap();

        map.put("name", "penngo");

        map.put("date", "2013-01-17");

        Pattern p = Pattern.compile("");

        String str = ", Hello ";

        Matcher m = p.matcher(str);

        StringBuffer sb = new StringBuffer();

        boolean result = m.find();

        while (result) {

            String key = m.group(1);

            String value = map.get(key);

            m.appendReplacement(sb, value);

            result = m.find();

        }

        m.appendTail(sb);

        System.out.println(sb.toString());

    }

}

 

php版

    $data = array('name'=>'penngo', 'date'=>'2013-01-17');

    function replaceStr($key, $data){

        return $data[$key];

    }

    $str = ', Hello ';

    $str = preg_replace("//ise", "replaceStr('\\1', \$data)", $str);

    echo $str;

?>

 

js版

   

   

    var date = {'name':'penngo', 'date':'2013-01-17'};

    var str = ', Hello ';

    str = str.replace(//g, function($0, $1){

        var value = date[$1];

        return value;

    });www.2cto.com

    document.write(str);

   

    

 

运行结果输出:

2013-01-17, Hello penngo

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