如果 key 不是 int 或 float 而是 string，则需要将其转换为 < code>int 首先通过执行
key
int
float
str
key = int(key)
or 到 float 通过执行
key = float(key)
否则，您的问题中的内容应该有效，但
if (key < 1) or (key > 34):
or
if not (1 <= key <= 34):
会更清晰一些。
If key isn't an int or float but a string, you need to convert it to an int first by doing
or to a float by doing
Otherwise, what you have in your question should work, but
would be a bit clearer.
这是一个布尔值：
if (not suffix == "flac" ) or (not suffix == "cue" ): # WRONG! FAILS print filename + ' is not a flac or cue file'
but
if not (suffix == "flac" or suffix == "cue" ): # CORRECT! print filename + ' is not a flac or cue file'
(not a) or (not b) == not ( a and b ) ，仅当 a 和 b 均为 true 时才为 false
(not a) or (not b) == not ( a and b )
不是（a 或 b）仅当 a 和 be 均为假时才为真。
不是（a 或 b）
Here's a Boolean thing:
(not a) or (not b) == not ( a and b ) ,is false only if a and b are both true
not (a or b)is true only if a and be are both false.
not (a or b)
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如果
key不是int或float而是string，则需要将其转换为 < code>int 首先通过执行or 到
float通过执行否则，您的问题中的内容应该有效，但
or
会更清晰一些。
If
keyisn't anintorfloatbut astring, you need to convert it to anintfirst by doingor to a
floatby doingOtherwise, what you have in your question should work, but
or
would be a bit clearer.
这是一个布尔值：
but
(not a) or (not b) == not ( a and b )，仅当 a 和 b 均为 true 时才为 false
不是（a 或 b）仅当 a 和 be 均为假时才为真。
Here's a Boolean thing:
but
(not a) or (not b) == not ( a and b ),is false only if a and b are both true
not (a or b)is true only if a and be are both false.