python - 帮我用 f-string 修复这个代码？

Question

当我读到这个

有这个代码

We can also do that this way:
We'd have 500000 beans, 500 jars, and 5 crates.

当我修改为 pep 498

print ("We can also do that this way:")
print (f"We'd have {secret_formula(start_point)} beans, {secret_formula(start_point)} jars, and {secret_formula(start_point)} crates.")

它打印这个

We can also do that this way:
We'd have (500000, 500, 5) beans, (500000, 500, 5) jars, and (500000, 500, 5) crates.

Answer 1

我看到你正在关注LPTHW教程，我strongly建议你选择一个不同的教程，因为你目前的教程有一些非常有趣的观点和其他一些问题。

回到您的问题：您需要将secret_formula()调用解包为：

b, j, c = secret_formula(start_point)

print (f"We'd have {b} beans, {j} jars, and {c} crates.")

f-strings基本上只是将变量放在字符串中以调用它，并且由于secret_formula()返回一个元组，当您 fstring 只是调用该函数时，它将返回并打印元组。

Answer 2

这段代码我想修复成 f-string print "We can also do that this way:" print "We'd have %d beans, %d jars, and %d crates." % secret_formula(start_point)