Particularly: Is Marshal safer? Are pointers faster?
int pixel = Marshal.ReadInt32(bitmapData.Scan0, x * 4 + y * bitmapData.Stride);
int pixel = ((int*)bitmapData.Scan0)[x + y * bitmapData.Stride / 4];
没有任何区别。 请从<代码>中查阅该代码。 Mamaal.ReadInt32 你们会看到使用点人做同样的事。
唯一的好处是,你不必明确允许不安全的法典。 红十字与红新月联会,你还要求“全图瓦卢”实施不安全的法典,这样可能就是一个考虑因素。
我个人喜欢使用<代码>Marshal<>/code>,主要是因为我没有安全守则。 至于速度越快,我不敢肯定,但我确信,如果你这样做的话,用六氯代苯操作六氯苯可能会放缓。 最好把整个扫描线读为C#阵列,并在此基础上开展工作。
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
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