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revise a bit #48

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Dec 12, 2024
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revise a bit #48

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2 changes: 1 addition & 1 deletion src/subtyping.md
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Expand Up @@ -35,7 +35,7 @@ error[E0308]: mismatched types
| expected `&'static str`, found struct `&'world str`
```

这是相当不幸的。在这种情况下，我们希望接受的类型的生命周期至少要和 `'world` 一样长。
这是相当不幸的。在这种情况下，我们希望接受生命周期至少与 `'world` 一样长的任何类型。
让我们尝试使用生命周期进行子类型化。

## 子类型化
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