The inner function maps a second inner function to each business rule function.
内部函数又将第二个内部函数映射到每一个业务规则函数。
The second inner function applies the ticker and price to the business rule function!
第二个内部函数再将股票代码和股价传递给业务规则函数！
The second inner function applies the ticker and price to the business rule function!
第二个内部函数再将股票代码和股价传递给业务规则函数！
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