What style of regular script is this? I want to find a copy of Mi Zige with the same font, but the book doesn't indicate what font it is!

This is a computer font TTF format font, called: Lin Zhixiu hard-pen regular script revised edition. It's the font used on the computer.

Font demonstration:

If you want to copy, you can download the font first, and then make it in the form of Mi Zige. Download address:/html/fonts/China/qita/2016-03-17/22838.html.