add solutions for tuple.md
This commit is contained in:
parent
d4bfe87373
commit
616153c17c
|
@ -0,0 +1,66 @@
|
||||||
|
1.
|
||||||
|
```rust
|
||||||
|
fn main() {
|
||||||
|
let _t0: (u8,i16) = (0, -1);
|
||||||
|
// Tuples can be tuple's members
|
||||||
|
let _t1: (u8, (i16, u32)) = (0, (-1, 1));
|
||||||
|
let t: (u8, u16, i64, &str, String) = (1u8, 2u16, 3i64, "hello", String::from(", world"));
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
2.
|
||||||
|
```rust
|
||||||
|
fn main() {
|
||||||
|
let t = ("i", "am", "sunface");
|
||||||
|
assert_eq!(t.2, "sunface");
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
3.
|
||||||
|
```rust
|
||||||
|
fn main() {
|
||||||
|
let too_long_tuple = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
|
||||||
|
println!("too long tuple: {:?}", too_long_tuple);
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
4.
|
||||||
|
```rust
|
||||||
|
fn main() {
|
||||||
|
let tup = (1, 6.4, "hello");
|
||||||
|
|
||||||
|
let (x, z, y) = tup;
|
||||||
|
|
||||||
|
assert_eq!(x, 1);
|
||||||
|
assert_eq!(y, "hello");
|
||||||
|
assert_eq!(z, 6.4);
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
5.
|
||||||
|
```rust
|
||||||
|
fn main() {
|
||||||
|
let (x, y, z);
|
||||||
|
|
||||||
|
// fill the blank
|
||||||
|
(y, z, x) = (1, 2, 3);
|
||||||
|
|
||||||
|
assert_eq!(x, 3);
|
||||||
|
assert_eq!(y, 1);
|
||||||
|
assert_eq!(z, 2);
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
6.
|
||||||
|
```rust
|
||||||
|
fn main() {
|
||||||
|
let (x, y) = sum_multiply((2, 3));
|
||||||
|
|
||||||
|
assert_eq!(x, 5);
|
||||||
|
assert_eq!(y, 6);
|
||||||
|
}
|
||||||
|
|
||||||
|
fn sum_multiply(nums: (i32, i32)) -> (i32, i32) {
|
||||||
|
(nums.0 + nums.1, nums.0 * nums.1)
|
||||||
|
}
|
||||||
|
```
|
|
@ -1,5 +1,5 @@
|
||||||
# Tuple
|
# Tuple
|
||||||
π Elements in a tuple can have different types. Tuple's type signature is `(T1, T2, ...)`, where `T1`, `T2` are the types of tuple's members.
|
1. π Elements in a tuple can have different types. Tuple's type signature is `(T1, T2, ...)`, where `T1`, `T2` are the types of tuple's members.
|
||||||
```rust,editable
|
```rust,editable
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
|
@ -11,7 +11,7 @@ fn main() {
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
π Members can be extracted from the tuple using indexing.
|
2. π Members can be extracted from the tuple using indexing.
|
||||||
```rust,editable
|
```rust,editable
|
||||||
|
|
||||||
// make it works
|
// make it works
|
||||||
|
@ -21,7 +21,7 @@ fn main() {
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
π Long tuples cannot be printed
|
3. π Long tuples cannot be printed
|
||||||
```rust,editable
|
```rust,editable
|
||||||
|
|
||||||
// fix the error
|
// fix the error
|
||||||
|
@ -31,7 +31,7 @@ fn main() {
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
π Destructuring tuple with pattern.
|
4. π Destructuring tuple with pattern.
|
||||||
```rust,editable
|
```rust,editable
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
|
@ -46,7 +46,7 @@ fn main() {
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
ππ Destructure assignments.
|
5. ππ Destructure assignments.
|
||||||
```rust,editable
|
```rust,editable
|
||||||
fn main() {
|
fn main() {
|
||||||
let (x, y, z);
|
let (x, y, z);
|
||||||
|
@ -60,7 +60,7 @@ fn main() {
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
ππ Tuples can be used as function arguments and return values
|
6. ππ Tuples can be used as function arguments and return values
|
||||||
```rust,editable
|
```rust,editable
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
|
|
Loadingβ¦
Reference in New Issue