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#include 
   
    #include 
    
     #include 
     
      using boost::coroutines::coroutine;void cooperative(coroutine
      
       ::push_type &sink, int i){	int j = i;	//调用main	sink(++j);	//调用main	sink(++j);	std::cout << "end\n";}int main(){	using std::placeholders::_1;	//传入一个参数，初始值为0	coroutine
       
        ::pull_type source{ std::bind(cooperative, _1, 0) };	std::cout << source.get() << '\n';	//调用cooperative	source();	std::cout << source.get() << '\n';	//调用cooperative	source();}