int数组转string数组和int数组转string中间用逗号隔开

//int 数组转string数组
int [] test={,,,};
string result=test.Select(i => i.ToString()).ToArray();

//int 数组转 string中间用逗号隔开

int [] test={,,,};
string result=string.Empty;
for (int i = ; i < test.length; i++)
{
   if(i==test.length-)
      result=test[i].ToString();
   else
    result=test[i]+",";
}