Zhentiw - 博客园

2024年2月26日

摘要： https://doc.rust-lang.org/std/string/struct.String.html#method.trim fn string_slice(arg: &str) { println!("{}", arg); } fn string(arg: String) { print 阅读全文

posted @ 2024-02-26 03:15 Zhentiw 阅读(7) 评论(0) 推荐(0) 编辑

[Rust] Struct method syntax

摘要： Structs contain data, but can also have logic. In this exercise we have defined the Package struct and we want to test some logic attached to it. #[de 阅读全文

posted @ 2024-02-26 02:51 Zhentiw 阅读(5) 评论(0) 推荐(0) 编辑

[Rust] Struct Update Syntax

摘要： https://doc.rust-lang.org/stable/book/ch05-01-defining-structs.html#creating-instances-from-other-instances-with-struct-update-syntax Similar to Javas 阅读全文

posted @ 2024-02-26 02:44 Zhentiw 阅读(6) 评论(0) 推荐(0) 编辑

2024年2月24日

[Rust] Converting Numbers with as

摘要： fn multiply(x: i64, y: u8) -> i64 { return x * (y as i64); } Here we convert u8to i64, which is possible since i64has a wider range than u8; but you c 阅读全文

posted @ 2024-02-24 19:01 Zhentiw 阅读(1) 评论(0) 推荐(0) 编辑

2024年2月23日

[Rust] Instantiating Classic, Tuple, and Unit structs

摘要： https://doc.rust-lang.org/book/ch05-01-defining-structs.html struct ColorClassicStruct { red: i32, green: i32, blue: i32 } struct ColorTupleStruct(i32 阅读全文

posted @ 2024-02-23 19:11 Zhentiw 阅读(7) 评论(0) 推荐(0) 编辑

[Rust] Accessing specific values in a tuple by index

摘要： fn main() { let cat = ("Furry McFurson", 3.5); let (name, age) = cat; println!("{} is {} years old.", name, age); } Example 2: #[test] fn indexing_tup 阅读全文

posted @ 2024-02-23 19:04 Zhentiw 阅读(2) 评论(0) 推荐(0) 编辑

[Rust] Create an array of numbers by using Range

摘要： fn main() { let a = 0..100; if a.len() >= 100 { println!("Wow, that's a big array!"); } else { println!("Meh, I eat arrays like that for breakfast."); 阅读全文

posted @ 2024-02-23 18:57 Zhentiw 阅读(4) 评论(0) 推荐(0) 编辑

[Rust Unit testing] test should_panic

摘要： struct Rectangle { width: i32, height: i32 } impl Rectangle { // Only change the test functions themselves pub fn new(width: i32, height: i32) -> Self 阅读全文

posted @ 2024-02-23 18:50 Zhentiw 阅读(13) 评论(0) 推荐(0) 编辑

[Rust Unit testing] assert & assert_eq

摘要： pub fn is_even(num: i32) -> bool { num % 2 == 0 } /* This attribute indicates that the following module is a conditional compilation module that shoul 阅读全文

posted @ 2024-02-23 18:46 Zhentiw 阅读(11) 评论(0) 推荐(0) 编辑

[Rust] Implicitly returning values from functions

摘要： Code has error: fn main() { let answer = square(3); println!("The square of 3 is {}", answer); } fn square(num: i32) -> i32 { num * num; } Error: ⚠️ C 阅读全文

posted @ 2024-02-23 15:39 Zhentiw 阅读(4) 评论(0) 推荐(0) 编辑

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