Hello, my friends, When I met with the difficulties , I tried my hard to find information and methods about how to resize partition, and the same time, I found so many friends bothered by the same problems

So this is a Macintosh notebook running MacOS 7.6, right? No? How about Windows95 on a Zeos 386? Linux?

I am afraid there are too many different kinds of computers and operating systems, and my crystal ball just can't figure out what you have. So some information about your computer and the OS you are using would help. Then at least I will know what forum to move your post to, because I at least know this is not a driver issue.