Strings can be tricky sometimes/微妙的字符串 *中的疑问
zhjr2019 opened this issue · 1 comments
zhjr2019 commented
疑问1:所有长度为 0 和长度为 1 的字符串都被驻留.
以下是我测试的代码
Python 3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 22:22:05) [MSC v.1916 64 bit (AMD64)] on win32
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>>> a = 'ka'
>>> len(a)
2
>>> id(a)
1439701558472
>>> len('ka')
2
>>> id('ka')
1439701558472
长度为2的字符串也驻留了吗?
leisurelicht commented
这里适用的是规则的第三条 字符串中只包含字母,数字或下划线时将会被驻留