布尔逻辑：如何简化这个 IF 语句？
我继承了一些包含 IF 语句的代码，如果可能的话，我想减少它。
本质上，它是一个简单的 IF（A 或 B）THEN。但这变得很棘手，因为 A 和 B 是其他表达式的泛化。
问题：如果可能的话，我该如何用更简单的术语重新表达这一点？
这是原始的 IF 语句...
为了清楚起见，我用方括号和大括号代替了圆括号。
IF ( { W & X & Y & Z } or { C & D & [ ( F & G) or (H & G) or (F & J) ] } )
/* Comment: For what it's worth: (Z = not c) */
I inherited some code that contains an IF statement I'd like to reduce if possible.
It is, in essence, a simple IF (A or B) THEN. But it gets tricky because A and B are generalizations of other expressions.
Question: How can I re-express this, if possible, in simpler terms?
Here's the original IF statement....
For clarity, I've substituted brackets and braces for parentheses.
IF ( { W & X & Y & Z } or { C & D & [ ( F & G) or (H & G) or (F & J) ] } )
/* Comment: For what it's worth: (Z = not c) */
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从逻辑角度看，你不能。没有重复的变量（
Z = ØC没有多大帮助），并且由于嵌套范式会比这更长。这似乎是最短的。从编程的角度来看，如果绝对最大速度不如可读性重要（或者你有一个不错的编译器），我会以一种使决策结构更清晰的方式重新组合它们（其中哪些与（程序执行）逻辑角度？），即使这会重复检查某些变量（假设这些不是函数调用）。我还将其分成几个单独的定义，并仅将结果组合在
if内。From a logic perspective, you can't. There are no duplicate variables (
Z = ¬Cdoesn't help much) and because of the nesting normal forms will be longer than this. This seems to be as short as it gets.From a programming perspective, if absolute maximum speed is less important than readability (or you've got a decent compiler) I would re-group them in a way that makes the decision structure more clear (which of these are related from a (program execution) logic point of view?), even if that duplicates checks to certain variables (assuming that these are not function calls). I'd also split this up into several separate definitions and only combine the results inside the
if.