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@@ -7,7 +7,7 @@ let mut b = 2; // 将2绑定到变量b
let some_number = Some(2); // 将Some(2)绑定到some_number let some_number = Some(2); // 将Some(2)绑定到some_number
``` ```
### 3.2.2 变量 ### 3.1.2 变量
Rust中变量分为不可变变量和可变变量。不可变变量不能对其进行二次绑定，可变变量可以对其进行二次绑定。 Rust中变量分为不可变变量和可变变量。不可变变量不能对其进行二次绑定，可变变量可以对其进行二次绑定。
- 不可变变量定义方式如下： - 不可变变量定义方式如下：