Python 3.4：试图让这个模块对这个2d数组中的销售总数求和。不工作

def sales_per_zip(sales):
    sales_sum = 0
    i = 1
    print(sales[1][0])
    zipcode = input("Enter the Zip Code here:")
    if zipcode == sales[1][0]:
        while i <= 6:
            sales_sum =+ sales[1][i]
            i =+ 1
            print(i)

    print(sales_sum)

sales = [
["Zip Code", "Mocha", "Latte", "Regular", "Decaf", "Caramel"],
[48093,180,100,200,180,150],
[48088,270,330,160,150,250],
[48026,240,310,450,100,320],
[48066,200,230,350,110,360],
]
opt = ""

print("What would you like to do?")
print("Z = Get Total Sales by Zip Code.")
print("C = Get Total Sales by Coffee Type.")
print("G = Get Grand Total of all Coffee Sales.")
print("HZ = Get Highest Sales by Zip Code.")
print("HC = Get Highest Sales by Coffee Type.")
opt = str(input("Enter your option here:"))

if opt == "z" or opt == "Z":
    sales_per_zip(sales)
#elif opt == "c" or opt == "C":
#
#elif opt == "g" or opt == "G":
#
#elif opt == "hz" or opt == "HZ":
#
#elif opt == "hc" or opt == "HC":

This is what i have so far. The first def is not summing the sales correctly. The output is just a 0 I can't seem to see why. I'm currently in my first python/programming class. I have this running in raptor but transferring it to python is becoming quite the task...

这就是我到目前为止所拥有的。第一个def没有正确地总结销售额。输出只是一个0我似乎无法理解为什么。我目前正处于我的第一个python /编程课程中。我有这个在猛禽运行,但转移到python正在成为一项任务......

1 个解决方案

#1

You have some incorrect operators =+ instead of +=. Also, you need to parse the input zipcode as a int. Lastly, the while loop should have < instead of <= so you don't get an IndexError.

你有一些不正确的运算符= +而不是+ =。此外,您需要将输入的zipcode解析为int。最后,while循环应该有 <而不是<=所以你不会得到一个indexerror。< p>

def sales_per_zip(sales):
    sales_sum = 0
    i = 1
    print(sales[1][0])
    zipcode = int(input("Enter the Zip Code here:"))
    if zipcode == sales[1][0]:
        while i < len(sales[1]):
            sales_sum += sales[1][i]
            i += 1
            print(i)

    print(sales_sum)

Additionaly, you could add another function to make sure you get a valid input zipcode.

另外,您可以添加另一个函数以确保获得有效的输入邮政编码。

def get_zipcode():
    try:
        zipcode = int(input("Enter the Zip Code here:"))
        return zipcode
    except:
        print("ERROR: zipcode must be an integer")
        return get_zipcode()

def sales_per_zip(sales):
    sales_sum = 0
    i = 1
    print(sales[1][0])
    zipcode = get_zipcode()
    if zipcode == sales[1][0]:
        while i < len(sales[1]):
            sales_sum += sales[1][i]
            i += 1
            print(i)

    print(sales_sum)

1 个解决方案

#1

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