C++ 初始值设定项值c+太多+；

有人能解释一下为什么我会出现以下编译器错误：

错误：“std:：array”的初始值设定项太多

#包括
#包括
使用名称空间std；
枚举状态
{
没有一个
白色
黑色
};
int main（）
{
数组初始值={
{State:：NONE，State:：NONE}，
{State:：WHITE，State:：WHITE}，
{State:：NONE，State:：NONE}，
{State:：NONE，State:：NONE}，
{State:：NONE，State:：NONE}，
{State:：NONE，State:：NONE}，
{State:：BLACK，State:：BLACK}，
{State:：NONE，State:：NONE}
};
返回0；
}

您可以使用普通数组，如下所示：

State ini[8][2] = {
   { State::NONE, State::NONE },
  { State::WHITE, State::WHITE },
  { State::NONE, State::NONE },
  { State::NONE, State::NONE },
  { State::NONE, State::NONE },
  { State::NONE, State::NONE },
  { State::BLACK, State::BLACK },
  { State::NONE, State::NONE }
};

或者，要修复代码，请添加一对括号：

 array<array<State, 2>, 8> initial = { {
      {State::NONE, State::NONE },
      { State::WHITE, State::WHITE },
      { State::NONE, State::NONE },
      { State::NONE, State::NONE },
      { State::NONE, State::NONE },
      { State::NONE, State::NONE },
      { State::BLACK, State::BLACK },
      { State::NONE, State::NONE }
    } };

array initial={{
{State:：NONE，State:：NONE}，
{State:：WHITE，State:：WHITE}，
{State:：NONE，State:：NONE}，
{State:：NONE，State:：NONE}，
{State:：NONE，State:：NONE}，
{State:：NONE，State:：NONE}，
{State:：BLACK，State:：BLACK}，
{State:：NONE，State:：NONE}
} };

您只需要额外的一对。有趣的是，clang直接调用

memset

将数组设为null，然后设置非零字段。我也检查了gcc，它设置了每个单独的字段，正如您最可能期望的那样。

 array<array<State, 2>, 8> initial = { {
      {State::NONE, State::NONE },
      { State::WHITE, State::WHITE },
      { State::NONE, State::NONE },
      { State::NONE, State::NONE },
      { State::NONE, State::NONE },
      { State::NONE, State::NONE },
      { State::BLACK, State::BLACK },
      { State::NONE, State::NONE }
    } };