Question

我的while循环问题。由于某种原因，当不等于Q或q时，它不会继续要求变量“lotNumber”。

def main():
    lotNumber=""

    output=""

    todayMonth=getValidMonth("the month for Today's Date: ")

    todayDay=getValidDay("the day for Today's Date: ",todayMonth)

    todayYear=getValidYear("the year for Today's Date: ")    

    todayDate=calculateJulianDate(todayMonth, todayDay)

    lotNumber=input("Please enter the next lot number or Q to exit: ")
    if lotNumber=="Q":
        print("================ Egg Grading Report ================")
        print("\t"+"\t"+"\t"+str(todayMonth)+"/"+str(todayDay)+"/"+str(todayYear)+"\t"+"\t"+"\t")
        print(output)
    while lotNumber!="Q" or lotNumber!="q":

        lotMonth=getValidLotMonth("the month for the date lot " +lotNumber+ " was laid: ")

        lotDay=getValidLotDay("the the day for the date lot " +str(lotNumber) +" was laid: ",lotMonth)

        lotYear=getValidLotYear("the the year for the date lot " +str(lotNumber)+ " was laid: ")

        lotDate=calculateJulianLotDate(lotMonth, lotDay)

        daysOld=todayDate-lotDate

        age=daysOld

        grade=calculateGradeOfEgg(daysOld)

        age=daysOld

        output= output=output +str(lotNumber) +"\t" +lotDate +"\t" +age +"\t" +grade+"\n"

        lotNumber=gettingLotNumber(lotNumber, lotMonth, lotDay, lotYear, output)

    print("================ Egg Grading Report ================")

    print("\t"+"\t"+"\t"+str(todayMonth)+"/"+str(todayDay)+"/"+str(todayYear)+"\t"+"\t"+"\t")

    print(output)


main ()

当然，这里有不同的功能。循环为我工作时，我无法得到这个蠢！帮助帮助！

谢谢！

Answer 1

您不是要求循环中的批号（在while循环套件中）

q = 'foo' while q != 'q' and q != 'Q': print(q) q = raw_input('q? ') #q = input('q? ') for Python 3x >>> foo q? bar bar q? baz baz q? q >>>

更好的

while q not in ('q','Q'): ....

Answer 2

你的while循环是无限的，你希望and运算符不是or，更好的条件是while lotNumber not in ('Q', 'q'):

Answer 3

您需要将getinput行添加到while循环的最后一行：

lotNumber=input("Please enter the next lot number or Q to exit: ")

变量不等于Q.

3 个答案: