post: python tricks 01

Author: Starslayerx

content/posts/2025-12-15_python-tricks.md …/posts/2025-12-15_python-distilled-01.mdcontent/posts/2025-12-15_python-tricks.md renamed to content/posts/2025-12-15_python-distilled-01.md content/posts/2025-12-15_python-tricks.md renamed to content/posts/2025-12-15_python-distilled-01.md

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++++
+date = '2025-12-15T8:00:00+08:00'
+draft = true
+title = 'Python Tricks Part 2: Operators, Expressions and Data Manipulation'
+tags = ['Python']
++++
+
+## Literals
+
+整数
+
+```Python
+04
+0b101010 # Binary 二进制
+0o52     # Octal  八进制
+0x2a     # Hexadecimal 十六进制
+```
+
+浮点数，内部使用 IEEE 754 双精度存储
+
+```Python
+4.2
+42.
+4.2e+2 # 科学记数法
+4.2E2
+-4.2e-2
+```
+
+数字类型字面量还可以使用 `_` 来方便阅读
+
+```Python
+123_456_789
+```
+
+## Truth Values
+
+- `true`: 非0数字、任何非空的字符串，列表，元组或字典
+- `false`: 0、None、空列表，元组或字典
+
+## Operations Involving Iterables
+
+TODO: 消耗性迭代器