内联字段是可以通过使用方括号(即[和])嵌入到任何文本字段中的ADIEU表达式。
Inline fields are ADIEU expressions that can be embedded in any text field by using square brackets (that is, [and]).
方括号(“[”和“]”)包括的表达式表示一些可选项目，是否需要取决于前面的选择。
The expressions surrounded by brackets (" [" and "] ") represent optional items that may be required depending on the previous choices.
W3Eval的表达式可以包含三种括号：标准圆括号、方括号和花括号。
Expressions in W3Eval can contain three kind of parentheses: standard parentheses, square brackets, and curly braces.
在bash中，所有布尔表达式都用方括号括起。
In bash, all Boolean expressions are enclosed in square brackets.
最后，我们看到第二个子表达式，它除了有由方括号组成的“不引用”运算符外，还有一个加号。
Finally, we get the second child subexpression, which other than the "don't refer" operator consists of some stuff in square brackets, and a plus sign.
就是一个有序的序列，好，那么我们怎么创建元组呢？，好，表达式是，一个方括号，后面是一系列的元素，以逗号分开，以一个闭方括号结束，这就是我刚才所说的。
OK. And how do I create them? Well, the representation is, following a square bracket, followed by a sequence of elements, separated by commas, followed by a closed square bracket.
然而，如果不使用方括号，XQuery表达式就是一个总是返回boolean值的Boolean表达式，而不会返回空序列。
However, without the square brackets the XQuery expression is a Boolean expression which always returns a Boolean value and never the empty sequence.
方括号内的表达式是一个元组。我们可以用元组赋值语句来遍历这个字典。
The expression in brackets is a tuple. We could use tuple assignment to traverse this dictionary.
大家总是有可能想试试把方括号在赋值表达式的等号左侧，试图去更改字符串中的某一个字符。比如。
It is tempting to use the operator on the left side of an assignment, with the intention of changing a character in a string. For example.
方括号内的任意表达式(包括简单的标识符)都可以作为该属性的索引。
An arbitrary expression, including a simple identifier, inside square brackets can index the property.
方括号内的任意表达式(包括简单的标识符)都可以作为该属性的索引。
An arbitrary expression, including a simple identifier, inside square brackets can index the property.
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