Created by: ChuRao

fluid.Trainer对象无法加载保存的参数，该对象的__init__方法下这一段代码

if param_path and os.path.isdir(param_path):
            # load params from param_path into scope
            io.load_persistables(
                executor=exe,
                dirname=param_path,
                main_program=self.startup_program)

是否应该是

with self._prog_and_scope_guard():
    if param_path and os.path.isdir(param_path):
            # load params from param_path into scope
            io.load_persistables(
                executor=exe,
                dirname=param_path,
                main_program=self.startup_program)