C++获取当前时间和计算程序运行时间的方法

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获取当前时间：

<span style="font-family:Comic Sans MS;">#include <iostream>#include <Windows.h>using namespace std;int main(){    SYSTEMTIME sys;    GetLocalTime(&sys);    cout<<sys.wYear<<"年";    cout<<sys.wMonth<<"月";    cout<<sys.wDay<<"日";    cout<<sys.wHour<<"时";    cout<<sys.wMinute<<"分";    cout<<sys.wSecond<<"秒";    cout<<sys.wMilliseconds<<"毫秒";    cout<<",星期"<<sys.wDayOfWeek<<endl;    return 0;}</span>

计算程序运行时间方法一：

#include <iostream>#include <time.h>using namespace std;int main(){    clock_t start,finish;    double total;    start=clock();    /*   */    finish=clock();    total=(double)(finish-start);    cout<<total<<"~~"<<endl;    return 0;}

计算程序运行时间方法二：

#include <iostream>#include <Windows.h>using namespace std;int main(){    long long start,finish;    long long total;    start=GetTickCount();   /*   */    finish=GetTickCount();    total=finish-start;     cout<<total<<"~~"<<endl;}

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