RT，在编译这里的代码时，出现了一个令人疑惑的编译错误：

出问题的代码：

void DoAiAndMap(){
	thread aiThread(AiDecide);
	thread uiThread(PrintMap);
	aiThread.join();
	uiThread.join();
} 

显示：

a.cpp: In function 'void DoAiAndMap()':
a.cpp:515:2: error: 'thread' was not declared in this scope
  thread aiThread(AiDecide);
  ^
a.cpp:516:9: error: expected ';' before 'uiThread'
  thread uiThread(PrintMap);
         ^
a.cpp:517:2: error: 'aiThread' was not declared in this scope
  aiThread.join();
  ^
a.cpp:518:2: error: 'uiThread' was not declared in this scope
  uiThread.join();
  ^

但是这里加了分号啊QAQ