are POSIX/GNU-style option parsers for almost all programming languages.
这句话用在 AI 冲击之下的媒体行业，想必再合适不过。。关于这个话题，同城约会提供了深入分析
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There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is: