我相信 VS2010 这次是正确的，我会检查我是否有方便的标准，但目前我没有.

I believe VS2010 to be right this time, and I'd check if I had the standard handy, but currently I don't.

现在，就像错误消息所说的那样:您无法捕获 lambda 封闭范围之外的内容.^†grid 不在封闭范围内，但是 this 是(在成员函数中，对 grid 的每次访问实际上都是作为 this->grid 发生的).对于您的用例，捕获 this 有效，因为您将立即使用它并且您不想复制 grid

Now, it's exactly like the error message says: You can't capture stuff outside of the enclosing scope of the lambda.^†grid is not in the enclosing scope, but this is (every access to grid actually happens as this->grid in member functions). For your usecase, capturing this works, since you'll use it right away and you don't want to copy the grid

auto lambda = [this](){ std::cout << grid[0][0] << "
"; }

但是，如果您想要存储网格并复制它以供以后访问，而您的 puzzle 对象可能已经被销毁，则您需要制作一个中间的本地副本:

If however, you want to store the grid and copy it for later access, where your puzzle object might already be destroyed, you'll need to make an intermediate, local copy:

vector<vector<int> > tmp(grid);
auto lambda = [tmp](){}; // capture the local copy per copy

† 我正在简化 - 谷歌搜索达到范围"或参阅第 5.1.2 节了解所有血腥细节.

† I'm simplifying - Google for "reaching scope" or see §5.1.2 for all the gory details.