C标准库里有没有计时函数？

john_he

类似于GetTickCount的，精度毫秒级以上。

john_he

找到了……

clock

Libraries

All versions of the C run-time libraries.

Calculates the wall-clock time used by the calling process.

clock_t clock( void );

Return Value
The elapsed wall-clock time since the start of the process (elapsed time in seconds times CLOCKS_PER_SEC). If the amount of elapsed time is unavailable, the function returns –1, cast as a clock_t.

各位请WS掉吧。