 看下我这结果是不是你要的 public class Main { public static void main(String[] args) { String bigNumberStr = "零壹贰叁肆伍陆柒捌玖"; String string = "123465456"; double number = new Double(string); string = String.format("%.2f", number).toString(); string = string.replace(".", ""); String result = ""; for(int i = 0; i < string.length(); i++) { char ch = string.charAt(i); int num = Integer.valueOf(String.valueOf(ch)); result = result.concat(String.valueOf(bigNumberStr.charAt(num))); } System.out.println(result); } }