输入结果 00000000000567
String bala="567";
固定长度是14位，怎么循环在bala前面填充00000000000
------解决方案--------------------
- Java code
String bala = "567"; StringBuffer sb = new StringBuffer(17); sb.append(bala); while (sb.length() < 17) { sb.insert(0, 0); } System.out.println(sb.toString());