这些年，越来越多普通人开始了文学写作。这本是人类精神表达的原生渴求，但大多数人往往止步途中。从“欲写”到“落笔”，需要克服惰性；从“完篇”到“臻善”，更是一场艰难跋涉。
Expected errors should not throw, raise, or panic. Instead, they should return an error result. This works differently in every language, but is often a Result type, a union of null and the success value, or an error code. This pattern pushes you toward handling the error, which you should if you want to make your software reliable.
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Transform backpressure gaps
In MS-DOS version 2.11, Microsoft added a memory management tweak which was never documented until much later. Note that this change was not in PC DOS 2.1, but was naturally included in PC DOS 3.0.