在 Python 中跳过 if 语句答案

【问题标题】：Skipping if statments in Python在 Python 中跳过 if 语句
【发布时间】：2018-04-22 11:15:45
【问题描述】：

我在我的代码行中创建了嵌套条件，但如果任何其他“（书）条件”条件不是“好”，我想跳过它们。

condition = input("What is the condition of the book? ")
age = input("Is the book old or new? ")
cover = input("What type of cover does it have? ")


if condition == "good":
    if age == "new":
        if cover == "hardcover":
            print("We can offer you a high price")
        elif cover == "papercover":
            print("We can offer you a medium price")
    elif age == "old":
        print("We can offer you a medium price")
elif condition == "poor":
    print("We can offer a low price")
elif condition == "terrible":
    print("Sorry we cannot accept this book")
else:
    print("I do not understand, please leave the store")

【问题讨论】：

“跳过它们”是什么意思？你能用特定的输入展示你想要发生的事情吗？
对于第一个语句，如果我输入“好”，它将按照我想要的方式通过另一个语句。但是如果输入'poor'，那么我将继续执行其他语句。如果我输入“可怕”或“差”，我基本上想跳过“年龄”和“封面”陈述
如果您不输入'good'，您将跳过年龄并覆盖内容......它们是仅在'good'书籍中执行。我不明白你
如果我填写“差”或“糟糕”，即使我不想这样做，我仍然必须填写“年龄”和“封面”声明。

标签： python python-3.x if-statement nested

【解决方案1】：

您需要将您的输入移动到 if 语句中，这样您就可以使用已经存在的 if-else 结构，如下所示：

condition = input("What is the condition of the book? ")

if condition == "good":
    age = input("Is the book old or new? ")
    if age == "new":
        cover = input("What type of cover does it have? ")
        if cover == "hardcover":
            print("We can offer you a high price")
        elif cover == "papercover":
            print("We can offer you a medium price")
    elif age == "old":
        print("We can offer you a medium price")
elif condition == "poor":
    print("We can offer a low price")
elif condition == "terrible":
    print("Sorry we cannot accept this book")
else:
    print("I do not understand, please leave the store")

【讨论】：

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