The default vector constructor generates a vector with no elements.
vector的默认构造函数则生成一个没有元素的vector向量对象。
I also want you to notice that in the constructor, I passed in a Vector that contains all the remote Bluetooth devices that were found by the first helper class.
我还请您注意，在构造函数中，我传递进一个Vector，它包含第一个helper类发现的所有远程蓝牙设备。
The core of the listing is the defnode macro that takes a node type and a vector of field names, and creates a constructor function for creating maps of that type.
这个清单的核心是defnode宏，它获取一个节点类型和一个字段名矢量，并创建一个构造函数来创建该类型的映射。
The constructor method for the SimpleLinearRegression class accepts an X and a Y vector with the same number of values in each vector.
simplelinearregression类的构造函数方法接受一个X和一个Y向量，每个向量都有相同数量的值。
The constructor method for the SimpleLinearRegression class accepts an X and a Y vector with the same number of values in each vector.
simplelinearregression类的构造函数方法接受一个X和一个Y向量，每个向量都有相同数量的值。
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