import java.util.*;
public class lianxi31 {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
int a[] = new int[20];
System.out.println("请输入多个正整数(输入-1表示结束):");
int i=0,j;
do{
a[i]=s.nextInt();
i++;
}while (a[i-1]!=-1);
System.out.println("你输入的数组为:");
for( j=0; j<i-1; j++) {
System.out.print(a[j]+" ");
}
System.out.println("\n数组逆序输出为:");
for( j=i-2; j>=0; j=j-1) {
System.out.print(a[j]+" ");
}
}
}
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