显示ACSII码字符表

!到~

import java.util.*;
class Main {
  public static void main(String[] args){
    char ch1 = '!';
    char ch2 = '~';
    int count = 0;
    for(int i = (int)ch1;i <= (int)ch2; i++){
      count++;
      
      System.out.print((count % 10 == 0)? (char)i + "\t\n": (char)i + "\t");
      
    }
  }
}