python - "Can't convert 'int' object to str implicitly" bug or what?

Question

I've typed up this code but I can't see what's wrong with it.

if guess != number:
    number = str(number)
print('Nope. The number I was thinking of was ' + number)

It keeps giving me "Can't convert 'int' object to str implicitly" even though I converted the integer into a string

Help out this noob please?

score 1 · Accepted Answer

尝试这个：

>>> number='5'
>>> if raw_input('enter number:')!=number:
...    print('Nope. The number I was thinking of was {}'.format(number))

或者：

>>> number=5
>>> if int(raw_input('enter number:'))!=number:
...    print('Nope. The number I was thinking of was {}'.format(number))

使用format 方法，您不需要进行显式类型转换来打印它，因为您没有连接两个字符串。不过，您需要确保在 if 语句中将字符串与字符串或 int 与 int 进行比较。

（如果您使用的是 Python 3，raw_input则输入相同的功能...）

score 0 · Accepted Answer

你只需要把你的块print里面。if

if guess != number:
    number = str(number)
    print('Nope. The number I was thinking of was ' + number)

在您的原始代码中，即使您猜对了，它也会打印出来，这意味着该if块没有执行，因此number仍然是一个整数。

您还可以使用字符串格式来避免转换number为字符串。

print('Nope. The number I was thinking of was %d' % number)

drawk提到了较新的字符串格式化方法。

2 回答 2