|
|
|
@ -90,6 +90,20 @@ let (x, y, z) = (1, 2, 3);
|
|
|
|
|
```rust
|
|
|
|
|
let (x, y) = (1, 2, 3);
|
|
|
|
|
```
|
|
|
|
|
```rust
|
|
|
|
|
error[E0308]: mismatched types
|
|
|
|
|
--> src/main.rs:4:5
|
|
|
|
|
|
|
|
|
|
|
4 | let (x, y) = (1, 2, 3);
|
|
|
|
|
| ^^^^^^ --------- this expression has type `({integer}, {integer}, {integer})`
|
|
|
|
|
| |
|
|
|
|
|
| expected a tuple with 3 elements, found one with 2 elements
|
|
|
|
|
|
|
|
|
|
|
= note: expected tuple `({integer}, {integer}, {integer})`
|
|
|
|
|
found tuple `(_, _)`
|
|
|
|
|
For more information about this error, try `rustc --explain E0308`.
|
|
|
|
|
error: could not compile `playground` due to previous error
|
|
|
|
|
```
|
|
|
|
|
对于元组来说,元素个数也是类型的一部分!
|
|
|
|
|
|
|
|
|
|
#### 函数参数
|
|
|
|
|