我嘗試計(jì)算抵押貸款/貸款，并在 Stack Overflow 上找到了一個(gè)代碼（18 年 12 月 14 日 17:13 Kravietz），但它不起作用。代碼：import mortgagem = mortgage.Mortgage(interest=0.0375, amount=350000, months=360)mortgage.print_summary(m)首先我安裝了模塊mortgage。第一個(gè)錯(cuò)誤：AttributeError-module mortgage has no attribute Mortgage確實(shí)，dir(mortgage)我發(fā)現(xiàn)沒(méi)有屬性Mortgage。我改為Mortgage，loan但沒(méi)有結(jié)果。我試過(guò)了from mortgage import loan，沒(méi)有結(jié)果。我試圖在第三行添加打印print(mortgage.pr ...)，沒(méi)有結(jié)果。錯(cuò)誤：NameError - name "interest" is not definedTypeError - "module" is not callableNameError - name "mortgage" is not defined