这会导致抛出一个 AccessViolationException
异常:
using System;
namespace TestApplication
{
internal static class Program
{
private static unsafe void Main()
{
ulong* addr = (ulong*)Int64.MaxValue;
ulong val = *addr;
}
}
}
这会导致抛出NullReferenceException
异常:
using System;
namespace TestApplication
{
internal static class Program
{
private static unsafe void Main()
{
ulong* addr = (ulong*)0x000000000000FF;
ulong val = *addr;
}
}
}
它们都是无效指针并违反内存访问规则。为什么会发生空引用异常?