而且变量数据保存不到 json 里面去

Traceback (most recent call last):
File "C:\vnstudio\lib\site-packages\vnpy\app\cta_strategy\ui\widget.py", line 268, in stop_strategy
self.cta_engine.stop_strategy(self.strategy_name)
File "C:\vnstudio\lib\site-packages\vnpy\app\cta_strategy\engine.py", line 702, in stop_strategy
self.sync_strategy_data(strategy)
File "C:\vnstudio\lib\site-packages\vnpy\app\cta_strategy\engine.py", line 803, in sync_strategy_data
save_json(self.data_filename, self.strategy_data)
File "C:\vnstudio\lib\site-packages\vnpy\trader\utility.py", line 116, in save_json
ensure_ascii=False
File "C:\vnstudio\lib\json__init.py", line 179, in dump
for chunk in iterable:
File "C:\vnstudio\lib\json\encoder.py", line 431, in _iterencode
yield from _iterencode_dict(o, _current_indent_level)
File "C:\vnstudio\lib\json\encoder.py", line 405, in _iterencode_dict
yield from chunks
File "C:\vnstudio\lib\json\encoder.py", line 405, in _iterencode_dict
yield from chunks
File "C:\vnstudio\lib\json\encoder.py", line 438, in _iterencode
o = _default(o)
File "C:\vnstudio\lib\json\encoder.py", line 179, in default
raise TypeError(f'Object of type {o.class.name_} '
TypeError: Object of type bool is not JSON serializable

1. 不会因为变量过多出现问题
2. 你应该有某个变量的类型有问题，请检查是否都为int/bool/str/float这四个类型中的某个

策略对应的data json文件破坏，删除.vntrader，重启试试。