1. .SessionOptions 生成一个配置, 打印 log 的多少：0:Verbose, 1:Info, 2:Warning. 3:Error, 4:Fatal. Default is 2.
sess_config = ort.SessionOptions()
sess_config.log_severity_level = 32. .InferenceSession(path_or_bytes, sess_options=None, providers=None, provider_options=None) 加载模型
self.sess = ort.InferenceSession(onnx_file, sess_options=sess_config)