import java.util.Scanner;
public class Za {
private static final double sum = 0;
public static void main(String[] args) {
int score[]=new int[5];
int sum=0;
for (int i = 0; i < score.length; i++) {
System.out.println("请输入成绩:");
Scanner input = new Scanner(System.in);
score[i] = input.nextInt();
sum=sum+score[i];
}
System.out.println("平均分为:"+sum/5.0);
}
}
为什么上面那个int sum=0放在for(;;)里面就会出错,有什么不同吗?for(int i ,sum=0;~;~)
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