The fonts of w7 and xp are different, such as imitation of Song. Under xp, it is generally "imitation of Song _GB23 12", while under w7, it is "imitation of Song". The fonts under w7 have been greatly expanded. In the past, there was no remote word _GB23 12 under the imitation of Song Dynasty, so Word could only be replaced by Song Dynasty, and w7 was unnecessary. However, because w7 didn't copy the font of Song _GB23 12, it used the regular song style instead of "Song style", so the characters changed. You can copy the Chinese font under xp to w7 system, and the original document font remains unchanged.