C++的开发时间字符串，星期为中文，精确到毫秒

只两天在做C++的开发，需要一个时间的字符串，星期为中文，精确到毫秒。网上查了一些资料总结如下：

#include <windows.h> string getTimeNow(){    SYSTEMTIME sys;    GetLocalTime(&sys);    char nowTime[40];    char *Week[7] = { "星期天","星期一","星期二","星期三","星期四","星期五","星期六" };    sprintf_s(nowTime, "%4d/%02d/%02d %03s %02d:%02d:%02d.%03d"        , sys.wYear, sys.wMonth, sys.wDay        , Week[sys.wDayOfWeek]        , sys.wHour, sys.wMinute, sys.wSecond, sys.wMilliseconds);    return nowTime;}

如有优化，请多指正！