Dab tsi ntawm cov hauv qab no yog piv txwv rau kev nthuav qhia postfix?

Cov txheej txheem:

Dab tsi ntawm cov hauv qab no yog piv txwv rau kev nthuav qhia postfix?
Dab tsi ntawm cov hauv qab no yog piv txwv rau kev nthuav qhia postfix?
Anonim

Dab tsi ntawm cov hauv qab no yog piv txwv rau kev nthuav qhia postfix? Piav: abc+de-+ is a postfix expression.

Yuav ua li cas yog lwm lub npe rau ib tug postfix qhia?

Reverse Polish notation (RPN), tseem hu ua Polish postfix notation los yog yooj yim postfix notation, yog ib tug lej sau nyob rau hauv uas cov neeg ua hauj lwm ua raws li lawv operands, in contrast to Polish notation (PN), uas cov neeg ua haujlwm ua ntej lawv cov haujlwm ua haujlwm.

Puas yog tus sawv cev ntawm qhov kev qhia no yog dab tsi?

Postfix notation tseem hu ua 'suffix notation' thiab 'reverse polish'. Postfix notation yog kab sawv cev ntawm tsob ntoo syntax. Nyob rau hauv postfix notation, ib qho kev qhia yuav sau unambiguously yam tsis muaj kab lus. Qhov zoo tib yam (infix) txoj kev sau cov lej ntawm x thiab y yog nrog tus neeg teb xov tooj hauv nruab nrab: xy.

Qhov twg hauv qab no yog daim ntawv kho mob raug raug?

Qhov kev sib npaug tuaj yeem ua tiav rau qhov tshwm sim thiab qhov seem operand C. Qhov kev qhia postfix zoo yog ces A B + C.

Qhov twg hauv qab no yog infix qhia?

Dab tsi ntawm cov hauv qab no yog kev qhia infix? Piav: (a+b)(c+d) is an infix expression.

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