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:
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The feature was first spotted by 9to5Google earlier this week, but it appears to be rolling out on a larger scale.，这一点在雷电模拟器官方版本下载中也有详细论述
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