Dose escalation will begin with rapid dose escalation for the low-dose groups (50 mg QD 、150 mg QD) and a "3 + 3" dose-escalation protocol for the high-dose groups.

Upon completing the dose escalation part of the study, dose expansion may proceed with 3 groups consisting of subjects with KRAS G12C mutant advanced solid tumors，Including non-small cell lung cancer, colorectal cancer and Other advanced solid tumors

ZG19018 Given by PO (mouth)

A DLT is defined as any Grade ≥ 3 AE meeting the criteria listed below occurring during the first treatment cycle of ZG19018 (day 1 through day 21) where elationship to ZG19018 cannot be ruled out.

The sum of the proportions of subjects who achieved CR or PR in imaging evaluation as assessed by the investigator based on RECIST1.1 criteria.