Question

I need to write this program using a loop

https://i.stack.imgur.com/gko6T.jpg

这是我迄今为止要做的事情,但我的方案必须仔细研究,了解情况?

def main():

    sum=0.0
    for i in range(1,6):
        x,y=eval(input("Please enter length and width of room:"))
        sf=(x*y)
        sum=sum+sf
        print("The total square footage is",sum)

main()

感谢您的帮助......

Answer 1

Just drop the indent on the print statement.

sum=0.0
for i in range(1,6):
    x,y=eval(input("Please enter length and width of room:"))
    sf=(x*y)
    sum=sum+sf
print("The total square footage is",sum)

<<>strong>edited:

这是一种常见的做法,你可以用来实现你想要的东西:

sum=0.0
for i in range(1,6):
    x,y=eval(input("Please enter length and width of room %i:" % i ))
    sf=(x*y)
    sum=sum+sf
print("The total square footage is %i" % sum )

What i m doing here is placing a wildcard in the middle of the string and then pass the parameters. %i tells the % operator that you are going to insert an integer. You can also put %s if you were going to add a string. There are a couple more you can check out. This is another example for the console:

>>> user_name =  mauricio 
>>> sum = 42
>>> line_to_print =  Hello user %s, your sum is %i  % (user_name, sum)
>>> print(line_to_print)
Hello mauricio, your sum is 42

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