如果数位少于
import java.util.Scanner; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); if(in.hasNextInt()){ StringBuilder n = new StringBuilder(in.nextLine()); if(n.length() == 9 ){ System.out.println(n); }else if(n.length() >9){ System.out.println(n.substring(0,9)); }else { int count = 9-n.length(); StringBuilder sb =new StringBuilder(); while(0<count--){ sb.append(0); } System.out.println(sb.toString()+n); } } in.close(); } }
public class Program { public static void Main() { string line = System.Console.ReadLine(); if (line.Length == 9) System.Console.WriteLine(line); else { int num = 9 - line.Length; for (int i = 0; i < num; i++) { line = "0" + line; } System.Console.WriteLine(line); } } }
#include <stdio.h> int main() { int a[9]; int b; int c = 1; int d; int len = sizeof(a) / sizeof(a[0]); scanf("%d",&b); for (int i = 0; i < len; i++) { d = b % (c * 10) / c; a[i] = d; c *= 10; } for (int i = len - 1;i >= 0; i--) { printf("%d",a[i]); } return 0; }