题目内容

下面程序通过函数average()计算数组中各元素的平均值。 float average(，int n)/第一空/ int i； float avg=0.0； for(i=0；i＜n；i++) avg=avg+；/第二空/ avg=__；/第三空/ return avg； main() int i，a[5]=2，4，6，8，10)； float mean； mean=average(a，5)； printf("%f\n"，mean)；

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