在Windows，Linux，Solaris，HP-UX，IBM AIX，Vxworks，Wind River Linux上睡眠毫秒？

I have to write a C program which has to sleep for milliseconds, which has to run on various platforms like Windows, Linux, Solaris, HP-UX, IBM AIX, Vxworks, and Windriver LinuxI have to write a C program which has to sleep