A Clinical Study on the Effect of Individualized Tidal Volume Setting on Pulmonary Complications in Perioperative Patients Undergoing One-Lung Ventilation

INTERVENTION: Control group:Tidal volume was set at 6 ml/kg;Trial group:Individualized tidal volume was implemented based on the patient's optimal lung compliance.; CONDITION: Lung complications related to one‐lung ventilation PRIMARY OUTCOME: Lung ultrasound score; SECONDARY OUTCOME: Respiratory mechanics parameters(Pplat Ppeak);Duration of surgery;SpO2;Computed tomography of the chest;Length of stay;Arterial blood gas analysis(PO2/FiO2?A‐aDO2?PO2?PaCO2?RI?Hb);Visual Analogue Scale pain score;ARISCAT Score; INCLUSION CRITERIA: 1. Age >= 18 years; 2. American Society of Anesthesiologists (ASA) Physical Status I–III; 3. BMI <= 30 kg/m^2; 4. Informed consent is obtained from the patient or their legal guardian.