C++11标准库里添加了多线程和锁的库,简单的使用小例:
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using namespace std; #include<Windows.h> #include<thread> void ( char c) { for( int i = 0; i < 1000; i++ ) { cout << c; cout.flush(); Sleep(1); } } int main() { std::thread *a = new std::thread(PrintThread, 'a'); std::thread *b = new std::thread(PrintThread, 'b'); a->join(); b->join(); char c; cin >> c; return 0; }
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引入锁:
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using namespace std; #include<mutex> #include<thread> std::mutex m; void ( char data ) { char c = data; for( int i = 0; i < 200; i++ ) { m.lock(); for( int j = 0; j < 50; j++ ) { cout << c; cout.flush(); } m.unlock(); } } int main() { std::thread a,b; a = std::thread(PrintThread, 'a'); b= std::thread(PrintThread, 'b'); a.join(); b.join(); char c; cin >> c; return 0; }
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