Booleans

do not use booleans unless you are absolutely sure there will never be a need for more than two values.

除非完全确定永不需要多于两个的值，否则不要使用布尔值。

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next, let's see what happens if you decide you want to change the field tag so that it generates booleans, dates, and text components automatically.

下一节，让我们来看看若您决定改变字段标记以使其自动生成布尔值、日期和文本组件，会发生怎样的情况。

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for the first exercise, i show you how to extend the field composition component from the last article to work with dates, booleans, and all manner of java types that should be displayed as text.

第一个练习演示如何扩展上篇文章中的字段复合组件，以处理日期、布尔值和各种应显示为文本的Java类型。

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read more about dr. george boole, the inventor of symbolic logic, after whom booleans are named.

阅读关于GeorgeBoole博士（符号逻辑的发明者）的更多内容，布尔型就是因他而得名的。

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when combined with a conditional statement, you can use booleans to determine a result based on the conditions that you script.

当与条件语句结合使用时，您可以基于您编写的条件使用布尔值确定结果。

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the boolean false elements are maintained as booleans.

布尔型false元素都被保留为布尔型。

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the engineer used ansys booleans partition to split the model.

工程师使用ANSYS布尔分割来拆分模型。

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leo used the channel booleans tool to filter the data.

利奥使用了频道布尔工具来筛选数据。

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the combination of booleans and conditional statements provides a way to create logic using javascript.

布尔值和条件语句的组合提供了一种使用JavaScript创建逻辑的方式。

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i showed you how to update the field composition component to work with dates ( tomahawk calendar), booleans ( check boxes), and all manner of java types that should be displayed as text.

我还为您演示了如何更新字段复合组件来处理日期（Tomahawk日历）、Boolean（复选框）和各种应显示为文本的Java类型。

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to avoid this problem, complex attributes should be initialized in the constructor; however, this is not necessary for simple attributes such as strings, booleans, and so on.

为了避免这个问题，应当在构造函数中初始化复杂属性；然而，对于字符串、布尔值等简单属性则不需要这样做。

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PAT and EFAT accept several data types, such as integers, Booleans, floats , enumerates and fixed-size arrays.

PAT和EFAT能接受多种数据类型, 包括整型 、 布尔型、浮点型 、 枚举型变量和有限大小的数组.

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keeping the boolean functions true() and false() as booleans without having them unintentionally converted to strings is difficult.

保持Boolean函数true（）和false（）为Booleans值，不让它们被意外地转换成字符串，是很困难的。

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the engineer used the ansys booleans intersect command.

工程师使用了ANSYS布尔运算的相交命令。

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but jcr also supports other types, including booleans, dates, and long integers.

但是JCR还支持其他类型，包括布尔型和长整型。

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The equality operator compares primitive strings, numbers, and Booleans by value.

相等运算符按值来比较基元字符串 、 数字和布尔值.

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the engineer checked the ansys booleans overlap carefully.

工程师仔细检查了ANSYS布尔运算重叠。

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the teacher explained the booleans to bits symbol on the whiteboard.

老师在白板上解释了布尔值到位符号的转换。

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varchar columns will become text inputs, booleans map onto html checkboxes, etc.

varchar列会变成文本输入，boolean型变量会映射成HTML的复选框等等。

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you're prevented from using booleans in shift expressions, which is described next.

在移位表达式中，我们被禁止使用布尔运算，原因将在下面解释。

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pat and efat accept several data types, such as integers, booleans, floats, enumerates and fixed-size arrays.

PAT和EFAT能接受多种数据类型，包括整型、布尔型、浮点型、枚举型变量和有限大小的数组。

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manually add exception handling to the toptype methods to ensure only string values that can be converted to booleans are supplied.

向TopType方法中手工添加异常处理代码，保证只能提供可以转化成布尔值的字符串。

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the general policy in saxon is that scalar values ( strings, numbers, booleans) are evaluated as early as possible, while node-set values are evaluated as late as possible.

Saxon中的常规策略是尽早对标量值求值（字符串、数字、布尔值），而尽可能晚对节点集求值。

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For booleans the bitwise operators have the same effect as the logical operators except that they do not short circuit.

对于布尔值，按位运算符具有与逻辑运算符相同的效果，只是它们不会中途短路。

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the programmer selected “true” from the booleans menu.

程序员从布尔值菜单中选择了“真”。

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