刚才看了下rating插件 rating light作者说
»Can I use / disable half-star ratings?«
Rating values are stored in the tracks_persistent database table provided by LMS. Internal rating values in LMS can range from 0 (no stars) to 100 (5 stars) where 20 equals 1 star (40 = 2 stars, 50 = 2.5 stars etc.). So how rating values are stored in LMS is a default that cannot be changed.
Ratings Light will always display the exact half-star value on a 5-star rating scale (e.g. LMS track rating value of 50 is displayed as 2.5 stars). You can enable or disable setting half-star ratings on this page: LMS settings > Advanced > Ratings Lights > Menus.
If, for some reason, you have tracks with odd track rating values (e.g. 67), Ratings Light will round them to the nearest half-star rating - for display only, the actual rating values remain unchanged.
应该是有这个字段的
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