可能重复:
Array.Reverse 方法背后的逻辑
我找不到这种方法的来源。谁知道它是如何实现的?
char[] inputstream = source.ToCharArray();
Array.Reverse(inputstream);
可能重复:
Array.Reverse 方法背后的逻辑
我找不到这种方法的来源。谁知道它是如何实现的?
char[] inputstream = source.ToCharArray();
Array.Reverse(inputstream);
使用 .NET 反射器 :)
public static void Reverse(Array array, int index, int length)
{
if (array == null)
{
throw new ArgumentNullException("array");
}
if ((index < array.GetLowerBound(0)) || (length < 0))
{
throw new ArgumentOutOfRangeException((index < 0) ? "index" : "length", Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
}
if ((array.Length - (index - array.GetLowerBound(0))) < length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidOffLen"));
}
if (array.Rank != 1)
{
throw new RankException(Environment.GetResourceString("Rank_MultiDimNotSupported"));
}
if (!TrySZReverse(array, index, length))
{
int num = index;
int num2 = (index + length) - 1;
object[] objArray = array as object[];
if (objArray == null)
{
while (num < num2)
{
object obj3 = array.GetValue(num);
array.SetValue(array.GetValue(num2), num);
array.SetValue(obj3, num2);
num++;
num2--;
}
}
else
{
while (num < num2)
{
object obj2 = objArray[num];
objArray[num] = objArray[num2];
objArray[num2] = obj2;
num++;
num2--;
}
}
}
}