多线程注意 创建线程的三种方法 # include 功能指针 功能对象 拉姆达 功能指针 # include # include void thread_A () { for ( int i = 0 ; i < 10000 ; i++); std::cout<< " I'm thread A! " <<std::endl; } int main () { std::thread threadObj (thread_A);