替换字符串中的值，而无需遍历每行

import re

def replace_string(input_string, pattern, replacement):
    return re.sub(pattern, replacement, input_string)

function replaceString(inputString, pattern, replacement) {
    return inputString.replace(new RegExp(pattern, 'g'), replacement);
}

import java.util.regex.Pattern;
import java.util.regex.Matcher;

public class StringReplaceExample {
    public static String replaceString(String inputString, String pattern, String replacement) {
        Pattern regex = Pattern.compile(pattern);
        Matcher matcher = regex.matcher(inputString);
        return matcher.replaceAll(replacement);
    }
}