问题描述
问题解答
回答1：楼主用的是支持c++11的编译器吧，
C++11新增了模板类array{}初始化的方法，仅被最新的C++11标准支持，有个专门的术语：initializer-list
在不支持c++11的编译器上会报错， 比如在我的机器上报错如下：
#include <array> #include <iostream> using namespace std; int main() { array<int, 3> a; a = {0, 1, 2};cout<<a[1]<<endl; return 0; }
In file included from /usr/include/c++/4.9/array:35:0,
from huakuohao.cpp:1:/usr/include/c++/4.9/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options. #error This file requires compiler and library support for the ^huakuohao.cpp: In function ‘int main()’:huakuohao.cpp:7:5: error: ‘array’ was not declared in this scopehuakuohao.cpp:8:17: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
