All All操作符根据一个函数对源Observable发射的所有数据进行判断,最终返回的结果就是这个判断结果。这个函数使用发射的数据作为参数,内部判断所有的数据是否满足我们定义好的判断条件,如果全部都满足则返回true,否则就返回false。 示例代码: Observable.from(studentList).all(new Func1<Student, Boolean>() { @Override...
togetherwithBoolean operatorstoform a more complex query (see below). patentscope.wipo.int patentscope.wipo.int 如有多个词语,可以通过布尔运算符结合在一起,以形成更复杂的查询语句(见下文)。 patentscope.wipo.int patentscope.wipo.int The left-hand expression is evaluated and compared to each row of ...
> rather than <?php $z=($y OR $x) ?> as might be expected - because the OR operator has lower precedence than assignment operators.On the other hand, after this code sequence:<?php$x=TRUE;$y=FALSE;$z=$y || $x;?>$z will be TRUE, as expected, because the || operator has ...
For the complete list of C# operators ordered by precedence level, see theOperator precedencesection of theC# operatorsarticle. Operator overloadability A user-defined type canoverloadthe!,&,|, and^operators. When a binary operator is overloaded, the corresponding compound assignment operator is als...
For the complete list of C# operators ordered by precedence level, see theOperator precedencesection of theC# operatorsarticle. Operator overloadability A user-defined type canoverloadthe!,&,|, and^operators. When a binary operator is overloaded, the corresponding compound assignment operator is als...
For the complete list of C# operators ordered by precedence level, see theOperator precedencesection of theC# operatorsarticle. Operator overloadability A user-defined type canoverloadthe!,&,|, and^operators. When a binary operator is overloaded, the corresponding compound assignment operator i...
In this case, $z will be FALSE because the above code is equivalent to<?php($z=$y) OR$x ?>rather than<?php $z=($yOR$x)?>as might be expected - because the OR operator has lower precedence than assignment operators. On the other hand, after this code sequence: ...
OperatorsBoolean operatorThe Boolean operator provides the operations (Common, Fuse, Cut) between two arguments in terms of TopoDS_Shape.The operator can be represented as:RB=Bj (S1, S2),where:Bj - operation of type j (Common, Fuse, Cut), RB - result of the operation, S1 and S2 - ...
Searching text on Web pages is much less exact than querying records in a database, and this search actually produced 10 million results. However, the Boolean concept does still apply. In this Google "Advanced Search," the OR is stated clearly, but the AND and NOT operators are there nonet...
Boolean operators are short-circuiting but bitwise operators are not short-circuiting. The short-circuiting behaviour is useful in expressions like this: if x is not None and x.foo == 42: # ... This would not work correctly with the bitwise & operator because both sides would always be...