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tsl-devkit/docs/tsl/finance/backtest_and_trade_flow.md
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# Backtest And Trade Flow
文档类型:业务骨架
是否可直接用于生成代码:否
是否含已验证可执行示例:否
是否含已验证反例:否
遇到不确定时跳转到:项目实际接口定义、[../modules/tsbacktesting.md](../modules/tsbacktesting.md)、[selection_and_signal_patterns.md](selection_and_signal_patterns.md)、[../syntax/index.md](../syntax/index.md)
这一篇收拢回测、组合、交易与结果读取流程。
## 这一篇解决什么问题
回答“回测对象如何组织、交易流程如何设置、结果怎样取出和解释”。
## 必须记住的规则
- 回测流程属于业务框架使用,不属于语言层语法。
- 在回测场景里,先分清“框架对象怎么配置”和“语法怎么写”是两件不同的事。
- 本层只给业务流程骨架,不给回测对象 API 真值。
- 本层优先解释流程、对象职责和结果读取入口。
- 如果问题已经落到回测对象创建方式、交易数据入口名、结果接口真值或项目封装差异,停止在 finance / modules 层继续推断,直接回项目实际接口定义。
## 最小任务骨架
1. 先确认回测对象类型、周期、资金和组合类型。
2. 再确认项目侧是否已经封装好最小可用对象模型、交易输入入口和结果读取链路。
3. 然后配置交易约束、价格口径、费用和基准。
4. 再准备交易输入:目标权重、成交明细或其他框架要求的输入数据。
5. 再执行回测。
6. 最后按任务读取净值、成交、持仓和绩效结果。
## 进入前先回答的问题
- 你做的是比例类组合,还是数量类组合。
- 你需要哪些交易约束、费用模型和基准口径。
- 结果要给人看,还是要交给后续分析 / 执行链路。
## 结果读取骨架
- 这里说的是结果类型,不是保证存在的接口名;任何读取方法都先以项目实际接口定义为准。
- 读净值 / 收益率时间序列。
- 读成交 / 调仓结果。
- 读持仓、资产和绩效指标。
- 读基准或扩展结果时,先确认对应接口是否已经在项目里封装好。
## 常见误判
- 把回测框架的字段和方法误当成 TSL 语言内建语法。
- 在没确认组合类型、资金约束和结果接口前,就直接复制零散片段。
- 只看到 `BackTest()`,就跳过交易输入准备和结果读取设计。
- 把“概念流程”误写成“独立可编译模板”。
## 跳转指引
- finance 总入口:见 [entry_decision.md](entry_decision.md)
- 参考现有回测资料:见 [../modules/tsbacktesting.md](../modules/tsbacktesting.md)
- 具体字段、交易数据入口、结果接口真值或项目封装差异:回项目实际接口定义
- 选股与信号:见 [selection_and_signal_patterns.md](selection_and_signal_patterns.md)
- 回到语言层:见 [../syntax/index.md](../syntax/index.md)