（作业一）
public class Main {
public static void main(String[] args) {
int[] ns = { 1, 4, 9, 16, 25 };
for (int i=4; i >= 0; i--) {
System.out.println(ns[i]);
}
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Faraam法汉
（作业一）
public class Main {
public static void main(String[] args) {
int[] ns = { 1, 4, 9, 16, 25 };
for (int i=4; i >= 0; i--) {
System.out.println(ns[i]);
}
}
}