用c++实现获取程序运行的时间

 1 #include<iostream>

 2 #include<ctime>

 3 using namespace std;

 4 int main()

 5 {

 6     time_t begin,end;

 7     begin=clock();

 8     cout<<"**************************\n\n\n\n\n\nI love you!\n\n\n\n\n**************************"<<endl;

 9     end=clock();

10     cout<<"runtime:"<<double(end-begin)/CLOCKS_PER_SEC<<"s"<<endl;

11 }

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