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修正示例
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quickstart/trait.md

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@@ -122,10 +122,10 @@ Trait::method(args);
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意为对于给定参数可以有多种形式的函数或类型。先看Rust中的一个泛型例子:
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```rust
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enum Option<T> {
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Some(T),
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None,
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}
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// enum Option<T> {
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// Some(T),
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// None,
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// }
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let x: Option<i32> = Some(5);
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let y: Option<f64> = Some(5.0f64);

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