addzeroahead.java

来自「简单的餐厅管理系统」· Java 代码 · 共 10 行

package util;

public class AddZeroAhead {
	public static String addZeroAhead(String s,int i){
		s = "00000000000000000000"+s;
		s = s.substring(s.length()-i);
		return s;
	}
}