从普通数组创建QList-CreatingaQListfromaplainarray

13  

One solution would be to first create an std::list and then convert that into a QList:

一种解决方案是首先创建std::list，然后将其转换为QList:

QList ql = 
    QList::fromStdList(std::list(values + 0, values + 2));

However, that would incurs two copies of the array content instead of just one.

但是，这会导致数组内容的两个副本，而不是一个。

The other solution is to use std::copy along with a back_inserter:

另一种解决方案是使用std::copy和back_inserter:

QList ql;
ql.reserve(2);
std::copy(values + 0, values + 2, std::back_inserter(ql));

If you use an array just to have an easy way to initialize the QList, you could perhaps use the insertion operator instead (assuming Struct defines the proper constructor):

如果你使用数组只是为了简单地初始化QList，你可以使用插入操作符(假设Struct定义了正确的构造函数):

QList ql;
ql <