c# – Parallel.For跳过元素

Random rand = new Random();
int byteLength = 10000000;
var result = new byte[10][];
Parallel.For(0,10,(i) =>
{
    int length = rand.Next(byteLength);
    var tempResult = new byte[length];
    Thread.Sleep(100);
    rand.NextBytes(tempResult);
    result[i] = tempResult;
});

与此(非并行)代码形成对比,该代码确实填充了每个元素：

rand = new Random();
var result2 = new byte[10][];
for (int i = 0; i < 10; i++)
{
    int length = rand.Next(byteLength);
    var tempResult = new byte[length];
    Thread.Sleep(100);
    rand.NextBytes(tempResult);
    result2[i] = tempResult;
}

与MSDN文档中的the examples相比,我怀疑这是因为结果在Parallel.For委托之外 – 因此,线程在访问结果时遇到问题.但作为多线程的新手,我不确定是这种情况.