如何在 for/range python 缓冲区中打印大于值且小于值的数字？ [关闭]

Question

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27 分钟前关闭。

改进这个问题

我试过这段代码：

for i in range(100):
        if i < 10:
                print("The following number is less than 10")
        if i > 50:
                print("The following numbers are greater than 50")
        else:
                print("The following numbers are between 10 and 50, including 10 and 50")
        print(i)

但有些数字总是用两个打印值显示

Answer 1

我猜所有小于 10 的数字都会打印 2 次？ 在这种情况下，您需要在第二个条件中添加一个elif 。

for i in range(100):
        if i < 10:
                print("The following number is less than 10")
        elif i > 50:
                print("The following numbers are greater than 50")
        else:
                print("The following numbers are between 10 and 50, including 10 and 50")
        print(i)

Answer 2

考虑i = 5的情况

if i < 10:   # - True
    print("The following number is less than 10")

if i > 50:   # - False
    print("The following numbers are greater than 50")
else:        # executed because the condition is False
    print("The following numbers are between 10 and 50, including 10 and 50")

第一个条件将评估为 True，因此将打印“小于 10”消息。 第二个条件的计算结果为 False，因此，执行else块中的语句。

您想要的是在第二个条件中使用elif ，这样如果第一个条件为 True，则不会执行else子句：

if i < 10:     # - True
    print("The following number is less than 10")
elif i > 50:   # skipped because first condition is True
    print("The following numbers are greater than 50")
else:          # skipped because first condition is True
    print("The following numbers are between 10 and 50, including 10 and 50")