HRS-8080

Main study objectives: 1. To evaluate the relative bioavailability of HRS-8080 tablets after oral administration of new and old process in healthy Chinese subjects on an empty stomach. 2. To evaluate the effects of high-fat and low-fat diets on the pharmacokinetics of HRS-8080 (new process) in healthy subjects. Secondary study objectives: 1. To evaluate the safety of HRS-8080 tablets after oral administration of new and old process in healthy subjects. 2. To evaluate the safety of HRS-8080 tablets after oral administration of high-fat meal, low-fat meal and on an empty stomach in healthy subjects.