Question

我正在尝试创建一个计算降雨量的程序，我在迭代列表以打印一周的日子时遇到了问题。

days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]

for day in days:
    input ("enter the the amount of rainfall (in mm) for", day "week 1")

我知道这是非常错误的，但我被困住了。

Answer 1

您应该使用,：

，而不是使用+

days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
for day in days:
    input ("enter the the amount of rainfall (in mm) for " + day + " week 1")

然后系统会提示您输入值，然后您可以从那里继续：）

Answer 2

使用字符串连接：

for day in days:
    input ("enter the the amount of rainfall (in mm) for " + day + " week 1")

它会创建一个包含所有部分的新字符串。

Answer 3

您可以尝试使用format，它允许您在python中连接任何类型。

days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]

register = {}

for day in days:
    amount = input ("enter the the amount of rainfall (in mm) for {0} week 1".format(day))
    register[day] = amount


for day in register:
    print '{0} rainfall : {1}'.format(day, register[day])

Answer 4

根据@ Mathias711，input方法需要一个字符串，因此您无法传递逗号分隔列表（您可以使用print方法）。

如果要跟踪输入的总数，则需要将输入添加到变量中。因为看起来你期望一个整数值，你应该将输入从字符串转换为int。 E.g。

days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
total = 0
for day in days:
    total += int(input ("enter the the amount of rainfall (in mm) for " + day + " week 1"))

使用Python 3迭代列表

4 个答案: