There's this notion of a Boolean value named after Mr. Bool, which is just a notion of true or false.
布尔值的概念是在布尔先生之后命名的,它是一个正确或错误的概念。
And this puzzle piece here colored in blue because it's a Boolean expression is just something that--whose answer is either a yes or no, 0 true or false, one or zero.
这个拼图染成蓝色,因为它是布尔表达式,它的结果只可能是肯定或否定,对或错,1或者。
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