不严格地说，一种数学或逻辑运算符。
逻辑运算符的实际优先级就是表2中罗列这些运算符的顺序。
The actual precedence of the logical operators is given by the order these operators are presented in Table 2.
而子表达式又可使用and、or和not逻辑运算符组合起来。
And the subexpressions can be combined using the and, or, and not logical operators.
操作逻辑运算符时，我们会遇到一种名为“短路”的情况。
When dealing with logical operators you run into a phenomenon called" short circuiting."
我们的平台上的发现模式能够提供广泛的运算符、逻辑运算符、通配符字符串搜索等。
Find mode on our platform can accommodate logical a wide array of operators, logical operators, wildcard string searches, etc.
最后，- a和- o选项允许使用逻辑运算符and和OR将表达式组合在一起。
Finally, the -a and -o options allow you to combine expressions with logical and and OR, respectively, while the unary!
在Python 中，关于or和and 逻辑运算符有意思的是，它们都是快捷运算符。
One interesting point about the or and the and logical operators in Python is that they are both shortcut operators.
由逻辑与和其后的逻辑非组成的逻辑运算符，如果两个运算域都是真，则返回的值便为假。
A logical operator that consists of a logical and followed by a logical NOT and returns a false value only if both operands are true.
逻辑运算符的优先级低于单独的比较运算符，这一点意义重大，因为必须先计算比较运算符，然后才能计算逻辑运算符。
The logical operators have lower precedence than the individual comparison operators, which makes sense because the comparison has to be evaluated before the logical operator can be evaluated.
可以在测试类别中使用逻辑运算符，从而运行来自多个类别的测试，或将运行的测试仅限于属于多个类别的测试。
You can use logical operators with test categories to run tests from multiple categories together or to limit the tests that you run to tests that belong to multiple categories.
提供指向介绍如何在查询中使用表达式、在查询中可以包括哪些逻辑运算符以及如何在查询中包括用户定义函数的主题的链接。
Provides links to topics such as how to use expressions in queries, what logical operators, and how to include user-defined functions in queries.
提供指向介绍如何在查询中使用表达式、在查询中可以包括哪些逻辑运算符以及如何在查询中包括用户定义函数的主题的链接。
Provides links to topics such as how to use expressions in queries, what logical operators, and how to include user-defined functions in queries.
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