g++要想支持c11的话，编译时
g++ -o t test.cpp -std=c++0x
g++ -o t test.cpp -std=c++11
#include <iostream> #include <array> using namespace std; int main() { array<int, 10> a = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; a[0] = 22; cout<<a.at(0)<<endl; cout<<a.back()<<endl; return 0; }
原文：https://www.cnblogs.com/longchang/p/12899431.html