rbatis核心驱动程序 支持bigdecimal,json解码,async_std,tokio use rbatis_core :: db :: {DBPool}; fn main () -> Result <(), rbatis_core::Error>{ async_std :: task :: block_on ( async move { //Automatic judgment of database type let pool = DBPool :: new ( "mysql://root:123456@localhost:3306/test" ). await ?; let mut conn = pool. acquire (). await ?; le