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

public class Test {
	public static void main(String[] args) {
		String[] params = new String[] { "11","22","33","44" };
		String templateString = "aaaa##bbbb##CCC##dddd##";
		for (int i = 0; i < params.length; i++) {
			templateString = templateString.replaceFirst("##",params[i]);
		}
		System.out.println("结果:" + templateString);
	}
}