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docs: update rust range (#194)

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* docs: update rust range

* update

* update
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fw_qaq
2022-12-01 09:53:17 -05:00
committed by GitHub
parent 5910a3f924
commit 869fbc6b40
1 changed files with 13 additions and 1 deletions
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docs/rust.md
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@@ -223,6 +223,18 @@ fn main(){
}
```
### 区间表达式
<!--rehype:wrap-class=col-span-2-->
产生式/句法规则 | 句法 | 类型 | 区间语义
:- | :- | :- | :-
RangeExpr | `start..end` | std::ops::Range | start ≤ x < end
RangeFromExpr | `start..` | std::ops::RangeFrom | start ≤ x
RangeToExpr | `..end` | std::ops::RangeTo | x < end
RangeFullExpr | `..` | std::ops::RangeFull | -
RangeInclusiveExpr | `start..=end`| std::ops::RangeInclusive | start ≤ x ≤ end
RangeToInclusiveExpr | `..=end` | std::ops::RangeToInclusive | x ≤ end
Rust 类型
--------
@@ -791,7 +803,7 @@ let left_shift = h << 4; // => 32
示例 | 意义
:- | :-
`c && d` | 两者都是真的_(AND)_
`c || d` | 要么是真的_(OR)_
`c \|\| d` | 要么是真的_(OR)_
`!c` | `c` 为假 _(NOT)_
----