string[,] scores = new string[8,2]{{"景珍","90"},{"林惠洋","65"},{"成蓉","88"},{"洪南昌","70"},{"龍玉民","46"},{"單江開","81"},{"田武山","100"},{"王三明","68"}};

? ? ? ? ? int avg=0;//平均分

? ? ? ? ? ? for(int i=0;i<scores.GetLongLength(0);i++){

? ? ? ? ? ? ? ? avg+=Convert.ToInt32(scores[i,1]);

? ? ? ? ? ? }

? ? ? ? ? ? avg = avg/8;

? ??

? ? string name ="";//高于平均分的名字

? ? for(int i=0;i<scores.GetLongLength(0);i++){

? ? ????if(Convert.ToInt32(scores[i,1])>=avg){

? ? ? ????? name+=scores[i,0]+" ";

? ????? }

? ?}

? ? name = name.Trim(' ');

? ? Console.WriteLine("平均分是{0}，高于平均分的有：",avg);

? ? Console.WriteLine(name);