This study is divided into 3 parts: Part A, Part B, and Part C. Part A is a randomized, double-blind, placebo-controlled, single ascending dose study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of single oral doses of SAL0137 tablets; Part B is a randomized, double-blind, placebo-controlled, multiple ascending dose study with once-daily administration for 14 consecutive days to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of multiple QD oral doses of SAL0137 tablets.