Traceback (most recent call last):
File "C:\vnstudio\Scripts\vnstation-script.pyw", line 11, in <module>
load_entry_point('vnstation==2.4.6', 'gui_scripts', 'vnstation')()
File "C:\vnstudio\lib\site-packages\vnstation\run.py", line 68, in main
return Main().exec()
File "C:\vnstudio\lib\site-packages\vnstation\run.py", line 40, in exec
self.login_widget = login_widget = LoginWidget()
File "C:\vnstudio\lib\site-packages\vnstation\ui\login\login_widget.py", line 26, in init
self.load_setting()
File "C:\vnstudio\lib\site-packages\vnstation\ui\login\login_widget.py", line 70, in load_setting
self.setting = load_json(self.filename)
File "C:\vnstudio\lib\site-packages\vnstation\utility.py", line 35, in load_json
data = json.load(f)
File "C:\vnstudio\lib\json__init.py", line 296, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File "C:\vnstudio\lib\json\init__.py", line 348, in loads
return _default_decoder.decode(s)
File "C:\vnstudio\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "C:\vnstudio\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

卸载后，重新安装vspy，就又可以下载了
然后发现，好像下载的代码不能写错，一旦写错了，错了一次，就不能再下载了

10:48:12 cu2003.SHFE-1m开始下载历史数据
10:48:12 数据下载失败，无法获取cu2003.SHFE的历史数据

小写了也不行呢，是马上就弹出上面的信息了

CU2003是目前的沪铜主力， CU2003.SHFE 的写法不知道对不对，印象中之前有写过其他的品种代码，有下载成功过的。