初始值设定项列表不适用于 Visual Studio 2012 中的向量?

So I was reading up on C++11 initializer lists today via Wikipedia and saw that C++11 supports the following syntax for the standard containers:

std::vector<std::string> v = { "xyzzy", "plugh", "abracadabra" };
std::vector<std::string> v({ "xyzzy", "plugh", "abracadabra" });
std::vector<std::string> v{ "xyzzy", "plugh", "abracadabra" }; 

当我在 Visual Studio 2012 中尝试以下操作时，出现编译错误 C2552: 'vecs' : non-aggregates cannot be initialized with initializer list

#include <vector>

using namespace std;

int main() {
    vector<string> vecs = {"h", "g", "e"};
}