我试图创建一个简单的while循环,检查三个值中是否有任何一个为负,如果为真,则再次请求这三个值。你知道吗
这是我的密码:
def vyohykeliput():
rivi = input("How many AB-zone trips do you make per month?\n")
ABmatka = int(rivi)
rivi1 = input("How many BC-zone trips do you make per month?\n")
BCmatka = int(rivi1)
rivi2 = input("How many ABC-zone trips do you make per month?\n")
ABCmatka = int(rivi2)
while ABmatka or BCmatka or ABCmatka < 0:
print("The given values cannot be negative!")
rivi = input("How many AB-zone trips do you make per month?\n")
ABmatka = int(rivi)
rivi1 = input("How many BC-zone trips do you make per month?\n")
BCmatka = int(rivi1)
rivi2 = input("How many ABC-zone trips do you make per month?\n")
ABCmatka = int(rivi2)
vyohykeliput()
但每次运行程序时,不管给定的数字是负数还是负数,我都能输出“给定的值…”。而且,我已经设法让它打印“给定值…”无数次。你知道吗
您要做的是:
简而言之(至少对于更多的值或一个可数的值)就是
ABmatka or BCmatka or ABCmatka < 0
是truthy,如果下列表达式之一是truthy:这样说:
如果你只是这样写的话,你是在问ABmatka或BCmatka是否为None或任何其他伪值,比如0,“,[]
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