解题思路:
注意事项:找规律 用StringBuilder链接
参考代码:import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
char A = 'A';
StringBuilder sb = new StringBuilder();
int n = scanner.nextInt();
String old1 = sb.toString();
if(n<=26){
for (int i = 1; i <= n; i++) {
String old = sb.toString();
if(i==1){
sb.append(A);
}else{
A = (char) (A + 1);
sb.append(A);
sb.append(old);
}
}
System.out.println(sb);
}
}
}
0.0分
0 人评分