Question

我正在尝试创建一个程序，用于存储1到0之间的用户输入。

当我只输入数字时它工作正常，但是，当输入任何其他内容时程序会失败。

我尝试在while语句中添加第三个子句，但这使整个程序失败。

我怀疑float(input)是错误的代码 - 当我没有这个时，程序中稍后的总和会失败，表明该变量只是一个字符串。

这里有什么问题？

#  Juvenile survival rate must be between 0 and 1 #
juvenile_survival = 3
while juvenile_survival < 0 or juvenile_survival > 1 or juvenile_survival.isdigit() == False:
    juvenile_survival = float(input("What is your juvenile survival rate? Remember this should be between 0 and 1"))
print("Your juvenile survival rate is ", juvenile_survival)

Answer 1

我不确定你想要完成什么：

你想要这样的东西：

juvenile_survival = 3
while juvenile_survival < 0 or juvenile_survival > 1:
    try:
        juvenile_survival = int(input("What is your juvenile survival rate? Remember this should be between 0 and 1: "))
    except ValueError as ex:
        print(ex)
print("Your juvenile survival rate is ", juvenile_survival)

while循环python .isdigit（）的多个条件

1 个答案: