通过一个map替换字符串中指定的字符变量方法

packagecom.test;

importjava.util.HashMap;

importjava.util.Map;

publicclassStringFormat {

    publicstaticString format(String input, Mapmap) {

        // 遍历map,用value替换掉key

        for(Map.Entryentry : map.entrySet()) {

            input = input.replace(entry.getKey(), entry.getValue());

        }

        returninput;

    }

    publicstaticvoidmain(String[] args) {

        Mapmap =newHashMap();

        map.put("$1","value1");

        map.put("$2","value2");

        map.put("$3","value3");

        System.out.println("结果:"+ StringFormat.format("$1$2$3", map));

        // 结果:value1value2value3

    }

}