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@ -75,15 +75,16 @@
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## B
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## B
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| 名称 | 关键字 | 简介 |
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| 名称 | 关键字 | 简介 |
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| ------------ | --------- | ------------------------------------------------------------------------------ |
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| ------------------ | ------------ | ------------------------------------------------------------------------------ |
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| [变量遮蔽] | shadowing | 允许声明相同的变量名，后者会遮蔽掉前者 |
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| [变量遮蔽] | shadowing | 允许声明相同的变量名，后者会遮蔽掉前者 |
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| [变量覆盖] | 模式匹配 | 无论是是 `match` 还是 `if let`，他们都可以在模式匹配时覆盖掉老的值，绑定新的值 |
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| [变量覆盖] | 模式匹配 | 无论是是 `match` 还是 `if let`，他们都可以在模式匹配时覆盖掉老的值，绑定新的值 |
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| [变量作用域] | 所有权 | 作用域是一个变量在程序中有效的范围 |
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| [变量作用域] | 所有权 | 作用域是一个变量在程序中有效的范围 |
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| [表达式] | | 进行求值，结尾无 `;`，有返回值 |
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| [表达式] | | 进行求值，结尾无 `;`，有返回值 |
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| [bool 布尔] | 布尔类型 | `true` `false`，占用 1 字节 |
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| [bool 布尔] | 布尔类型 | `true` `false`，占用 1 字节 |
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| [break] | 循环控制 | 直接跳出当前整个循环 |
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| [break] | 循环控制 | 直接跳出当前整个循环 |
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| | KWB | |
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| [backtrace 栈展开] | 不可恢复错误 | `RUST_BACKTRACE=1 cargo run` |
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| | KWB | |
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[变量遮蔽]: https://course.rs/basic/variable.html#变量遮蔽shadowing
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[变量遮蔽]: https://course.rs/basic/variable.html#变量遮蔽shadowing
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[变量覆盖]: https://course.rs/basic/match-pattern/match-if-let.html#变量覆盖
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[变量覆盖]: https://course.rs/basic/match-pattern/match-if-let.html#变量覆盖
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@ -91,6 +92,7 @@
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[bool 布尔]: https://course.rs/basic/base-type/char-bool.html#布尔bool
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[bool 布尔]: https://course.rs/basic/base-type/char-bool.html#布尔bool
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[表达式]: https://course.rs/basic/base-type/statement-expression.html#表达式
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[表达式]: https://course.rs/basic/base-type/statement-expression.html#表达式
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[break]: https://course.rs/basic/flow-control.html#break
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[break]: https://course.rs/basic/flow-control.html#break
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[backtrace 栈展开]: https://course.rs/basic/result-error/panic.html#backtrace-栈展开
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[back](#head)
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[back](#head)
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@ -294,9 +296,14 @@
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## P
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## P
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| 名称 | 关键字 | 简介 |
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| 名称 | 关键字 | 简介 |
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| ---- | ------ | ---- |
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| --------------------- | ------------ | -------------------------------------------------------------------- |
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| | KWP | |
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| [panic! 不可恢复错误] | 不可恢复错误 | 程序会打印出一个错误信息，展开报错点往前的函数调用堆栈，最后退出程序 |
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| [panic 原理剖析] | 不可恢复错误 | |
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| | KWP | |
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[panic! 不可恢复错误]: https://course.rs/basic/result-error/panic.html#panic-与不可恢复错误
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[panic 原理剖析]: https://course.rs/basic/result-error/panic.html#panic-原理剖析
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[back](#head)
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[back](#head)
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Allan Downey
3 years ago