Question

我在修复此代码时遇到问题，有人可以帮我吗，我不知道如何解决“销售”功能的帮助，谢谢您

def main():
    #store introduction
    print("~~~~~~~~~~~~~~~~~~~~~~~~~~~")
    print("Welcome to the Movie Store!")
    print("~~~~~~~~~~~~~~~~~~~~~~~~~~~")

    #user input on budget
    budget = (input("What is your budget?"))
    print("Your budget is " + budget + "$.")
    
    # declaring variables
    sale = (200 - int(budget))
    
    # selection statements to determine subtotal
    if (200 > int(budget)):
        print("If you spend $" + sale + " you'll qualify for a gift!")
    else:
        print("You qualify for a free gift!")
    print("We recommend our all time best seller Marvels Black Panther!")

main()

Answer 1

使用f字符串进行变量替换（还有许多其他方式）：

print(f"Your budget is {budget}$.")
print(f"If you spend ${sale} you'll qualify for a gift!")

当前，在您的代码中，您尝试将字符串“ Your budget is”添加到整数budget，而python不知道该怎么做。另一种方法是将变量显式转换为字符串：

print("Your budget is " + str(budget) + "$.")

或使用格式：

print("Your budget is %s$." % (budget,))

Answer 2

您的变量sale是一个整数，在您的打印语句生效之前，必须将其转换为字符串。

执行此操作

if (200 > int(budget)):
    print("If you spend $" + str(sale) + " you'll qualify for a gift!")
else:
    print("You qualify for a free gift!")

str（）函数将sale变量转换为字符串，以便可以与+运算符结合并打印到控制台。

TypeError：无法将int隐式转换为str

2 个答案: