qq_37544763的博客

方法1： clock_t begin = clock(); //… clock_t end = clock(); cout << "execute time = " << (end - begin) / CLOCKS_PER_SEC << “s” << endl; IOS方法2： CFAbsoluteTime beginTime = CFAbsolu...

https://www.cnblogs.com/ranjiewen/p/5901296.html