我一直认为，要成为一名优秀的程序员，必须了解系统的所有内部工作原理。我很羞愧，因为在开始编码之前，我不知道关于这门语言的一切，比如它的库、模式、代码片段。 我不再那么天真了。

与UNIX相比，NT操作系统的设计有缺陷。事实证明，NT内核和设计决策与任何现代的UNIX类系统非常相似，内核中的大多数问题都是由有漏洞的公司编写的第三方漏洞驱动程序造成的。

以前从未见过整数提升… 并认为'z'在这段代码中可以容纳255:

unsigned char x = 1;
unsigned char y = 2;
unsigned char z = abs(x - y);

z的正确值是1

In the early days, most personal computers had a cassette tape interface for loading and storing programs. I did not have a computer at this time but read everything I could get my hands on (mostly magazines) that had anything to do with computers (this was the late 70's - no internet for me). For some reason I was under the impression that programs were executed directly from the cassette tape and that the only reason computers had any RAM was to store variables while the program ran. I figured that when the code had to execute a jump instruction, it would somehow rewind or advance the tape to the correct position and continue from there.

事实证明，在Linux下是否检查内存分配是否返回一个引用并不重要，因为它实际上会欺骗你，在未来的某个时候实际分配内存，或者如果它没有你需要的内存，就完全终止你的程序。

除了插入/冒泡排序之外，任何事情都是非常简单的黑魔法。