Effects of Remimazolam and Propofol on Anesthesia Induction

Inclusion Criteria: * Diagnosed as type 2 diabetes according to the "Chinese Guidelines for the Prevention and Treatment of Type 2 diabetes 2020" * ASA II or III Exclusion Criteria: * People who are allergic to Remimazolam * It is estimated that patients with difficulty in tracheal intubation (poor head and neck mobility, history of airway surgery, history of OSAHS, nail to chin distance\<6cm, Malampati grade 3 and above, mouth opening\<2.5cm, obesity (BMI\>30kg · m-2), etc * Hypertension (clinically diagnosed as hypertension) * Patients with coronary heart disease (with typical symptoms of angina pectoris and exclusion of aortic valve disease, clear history of old myocardial infarction, clear history of acute myocardial infarction, coronary stenosis greater than or equal to 70% found by CAG) * Patients with arrhythmia, heart failure, renal failure, and recently taking cardiovascular active drugs * Endocrine diseases such as hyperthyroidism and pheochromocytoma that may affect the level of body hemodynamics * Ketoacidosis and lactic acidosis * Patients with long-term use of sedatives or antidepressants or a history of alcoholism or drug dependence * Asthma or reactive airway disease * Patients with myasthenia gravis and cognitive dysfunction cannot cooperate with this study