Question

我在 python3.9.1 中遇到了这个错误。我用 thonny 编码。

numbers = [12, 23, 37, 42, 59, 67]
#print(numbers)
#index = 0
#for i in numbers:
    #print(numbers[index] + 19)
    #ndex = index + 1
#for x in numbers:
    #print(x)
    #print(x * x)

variable = 34
print("The number of the variable is: " + str(variable))
print("The list numbers are: " + str(numbers))
new_number = input("Input a new number, but smaller than the numbers listed above: ")

for var in variable:
    print(var * new_number)

请帮忙。 :)

Answer 1

出现错误是正常的，您不能使用 int 数据类型的 for 循环，因此请使用范围函数：

numbers = [12, 23, 37, 42, 59, 67]


variable = 34
print("The number of the variable is: " + str(variable))
print("The list numbers are: " + str(numbers))
new_number = input("Input a new number, but smaller than the numbers listed above:     ")

for var in range(variable):
    print(var * new_number)

注意

如果将其转换为列表，您可以更好地理解 range 函数的工作原理：

variable = 34
print(list(range(variable)))
# [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33]

TypeError: 'int' object is not iterable error in python3.9.1

1 个答案:

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