Many of us believe that regular expressions were actually invented by Kalahari bushmen who infiltrated computer science programs throughout the world's universities years ago.
具体来说,表达式是以抽象的方式定义、编译的,然后直接用于计算。
Specifically, expression are defined in the abstract sense, compiled and later actually used to make calculations.
表达式是非类类型且其值在转换到std::size_t前是负的;.
The expression is of non-class type and its value before converting to std::size_t is less than zero;
表达式是lambda函数执行的一段代码,它可以返回任何值,也可以不返回任何值。
An expression isa piece of code executed by the lambda function, which may or may not return any value.
只要表达式是以上所列的类型之一,并且只包含上面所列的结构,该表达式就可以在编译时赋值。
Whenever an expression is of one of the types listed above and contains only the constructs listed above, the expression is evaluated at compile-time.
表达式是非类类型且其值在转换到std::size_t前是负的;.
The expression is of non-class type and its value before conversion to std::size_t is negative;
表达式是孩子气的热心,好像她在看鱼游过清晰的红色岩石。
The expression was one of childlike intentness, as if she were watching for a fish to swim past over the clear red rocks.
但是,我们可以使用“x=x^y^(y=x);”注意表达式是从左到右计算的。
However, we can use“x= x^ y^(y= x);” Note the expressions are evaluated from left to right.
在这个例子中,World匹配上了字符串"HelloWorld",因此表达式是真。
In our case,"World" matches the second word in"Hello World", so the expression is true.
服务器给你函数f(x)的图像,它的表达式是隐藏的.
The server will give you the graph of a function f(x), whose expression will be hidden.
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