我在PyCharm中使用Python运行一个脚本。在我读取Excel csv文件后，我得到了这个错误：

Traceback (most recent call last):
  File "C:\Users\lolaX\PycharmProjects\Srourcode\Srourcode\main.py", line 245, in <module>
    shipmentsdata = pd.read_csv('../input/sample-data-shipments-vehicle-routing-simulation/sampledatatruckrouting2.csv')
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\lolaX\PycharmProjects\Srourcode\venv\Lib\site-packages\pandas\util\_decorators.py", line 211, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\lolaX\PycharmProjects\Srourcode\venv\Lib\site-packages\pandas\util\_decorators.py", line 331, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\lolaX\PycharmProjects\Srourcode\venv\Lib\site-packages\pandas\io\parsers\readers.py", line 950, in read_csv
    return _read(filepath_or_buffer, kwds)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\lolaX\PycharmProjects\Srourcode\venv\Lib\site-packages\pandas\io\parsers\readers.py", line 605, in _read
    parser = TextFileReader(filepath_or_buffer, **kwds)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\lolaX\PycharmProjects\Srourcode\venv\Lib\site-packages\pandas\io\parsers\readers.py", line 1442, in __init__
    self._engine = self._make_engine(f, self.engine)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\lolaX\PycharmProjects\Srourcode\venv\Lib\site-packages\pandas\io\parsers\readers.py", line 1735, in _make_engine
    self.handles = get_handle(
                   ^^^^^^^^^^^
  File "C:\Users\lolaX\PycharmProjects\Srourcode\venv\Lib\site-packages\pandas\io\common.py", line 856, in get_handle
    handle = open(
             ^^^^^
**FileNotFoundError: [Errno 2] No such file or directory: '../input/sample-data-shipments-vehicle-routing-simulation/sampledatatruckrouting2.csv'
**
Process finished with exit code 1

我只是不知道为什么csv文件不被视为目录。下面是我如何阅读它：

# read csv
truck_data = pd.read_csv(r'C:\Users\lolaX\Desktop\sampledatatruckrouting2.csv')
print(truck_data)

它正在阅读和输出数据，但我不知道如何修复错误。请帮助。
我试着使用OS和其他很多东西来修复错误，但都没有成功。