auto __thiscall iCTPWidgetCTPWidget::createConnect::<lambda_9a36d6cb6602a589c22b07d13e42587c>::operator ()(void) const 0
OnRspUserLogin:
ErrorCode=[0], ErrorMsg=[CTP:No Error]
RequestID=[0], Chain=[1]
OnRspUserLogin:
ErrorCode=[0], ErrorMsg=[��ȷ]
RequestID=[0], Chain=[1]
auto __thiscall iCTPWidgetCTPWidget::createConnect::<lambda_1dca81dc075f1f08e57cb7b860019dd7>::operator ()(bool) const true
auto __thiscall iCTPWidgetCTPWidget::createConnect::<lambda_3b069fc514849fef62185ddea18b8ee0>::operator ()(bool) const true
0x50A31A34 (thosttraderapi.dll)处(位于 QtCTP.exe 中)引发的异常: 0xC0000005: 读取位置 0x00550070 时发生访问冲突。
sub ok? 0
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
void __thiscall iCTPWidgetMarketDataApi::OnRspSubMarketData(struct CThostFtdcSpecificInstrumentField *,struct CThostFtdcRspInfoField *,int,bool) CTP:No Error
0x50A31A34 (thosttraderapi.dll) (QtCTP.exe 中)处有未经处理的异常: 0xC0000005: 读取位置 0x00550070 时发生访问冲突。

本文详细记录了一次使用CTP交易接口时遇到的异常情况,包括用户登录响应无错误,但随后出现内存访问冲突异常,多次尝试订阅市场数据也返回无错误。通过对异常堆栈的分析,旨在找出问题根源并提供解决方案。
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