string[]name=new string[]{"景珍","林惠洋","成蓉","洪南昌","龍玉民","單江開","田武山","王三明"};
int[]score=new int[]{90,65,88,70,46,81,100,68};
int a=0;
foreach(int x in score)
a+=x;
a/=score.Length;
Console.WriteLine("平均分是{0}，高于平均分的有：",a);
for(int x=0;x<score.Length;x++)
if(score[x]>a)
Console.Write(name[x]+' ');
