java 正则表达式提取价格

实例代码：

    public static void main(String[] args) {
        String str="11000.00元";
        Pattern pattern = Pattern.compile("(\d+(\.\d+)?)");
        Matcher matcher = pattern.matcher(str);
        if (matcher.find()) {
            System.out.println(matcher.group(1));
        }        
    }