C# 简化字符串数组初始化

Question

C# 简化字符串数组初始化。有没有办法在 C# 中优化以下代码

string[] createdBy = new string[totalRowCount];
for (long i = 0; i < totalRowCount; i++)
{
    createdBy[i] = userName;
}

还有

int?[] defaultInd = new int?[totalRowCount];
        for (long i = 0; i < totalRowCount; i++)
        {
            if (i == 0)
            {
                defaultInd[i] = 1;
            }
            else
            {
                defaultInd[i] = 0;
            }
        }

Answer 1

string[] myIntArray = Enumerable.Repeat(userName, totalRowCount).ToArray();