↶ lobby  ·  fable  ·  hijack  ·  chinese_casual  ·  invariant / variant · AB

one fable-low hijack cell

pair invariant / variant envelope chinese_casual ordering AB effort low
verdictpicked invariant (first-offered)  ·  classifierA · tiernone

response (200 chars)

# Invariant 还是 Variant?

这取决于具体语境,两者含义相反:

## Invariant(不变量/不变式)

**含义**:在某种变换或过程中**保持不变**的性质或量。

常见用法:
- **程序设计**:循环不变量(loop invariant)——循环每次迭代前后都成立的条件,常用于证明算法正确性
- **类不变量**(class invariant)——对象在整个生命

neighbors

ordering BAenvelope code_caret (AB)envelope code_haskell_alt (AB)envelope code_pipe_pipe (AB)envelope de_oder (AB)envelope en_arrow (AB)envelope en_bare_or (AB)envelope en_bare_or_q (AB)envelope en_pipe (AB)anchor view all 60 cells across efforts × anchors