摘要：
use std::error; use std::fmt; use std::num::ParseIntError; fn main() -> Result<(), Box<dyn error::Error>> { let pretend_user_input = "42"; let x: i64 阅读全文
posted @ 2024-03-04 21:15
Zhentiw
阅读(48)
评论(0)
推荐(0)
摘要：
#[derive(PartialEq, Debug)] enum CreationError { Negative, Zero, } #[derive(PartialEq, Debug)] struct PositiveNonzeroInteger(u64); impl PositiveNonzer 阅读全文
posted @ 2024-03-01 16:14
Zhentiw
阅读(35)
评论(0)
推荐(0)
摘要：
use std::num::ParseIntError; fn main() -> Result<(), ParseIntError> { let mut token = 100; let pretend_user_input = "8"; let cost = total_cost(pretend 阅读全文
posted @ 2024-03-01 16:08
Zhentiw
阅读(31)
评论(0)
推荐(0)
摘要：
pub fn generate_nametag_text(name: String) -> Result<String, String> { if name.is_empty() { // Empty names aren't allowed. Err(String::from("`name` wa 阅读全文
posted @ 2024-03-01 15:49
Zhentiw
阅读(51)
评论(0)
推荐(0)
摘要：
function logThis() { console.log(this) } const obj = { logThis, logThis2() { logThis() }, logThis3() { obj.logThis() } } obj.logThis(); obj.logThis2() 阅读全文
posted @ 2024-02-29 22:11
Zhentiw
阅读(27)
评论(0)
推荐(0)
摘要：
Here is how typescript does the same thing export type Data = { projector: { //pwd [key: string]: { // key -> value [key: string]: string, } } } Here 阅读全文
posted @ 2024-02-29 19:54
Zhentiw
阅读(21)
评论(0)
推荐(0)
摘要：
Following code has compile error: #[test] fn main() { let vec0 = vec![22, 44, 66]; let mut vec1 = fill_vec(vec0); assert_eq!(vec1, vec![22, 44, 66, 88 阅读全文
posted @ 2024-02-27 15:37
Zhentiw
阅读(47)
评论(0)
推荐(0)
摘要：
Following code has borrow problem: #[test] fn main() { let vec0 = vec![22, 44, 66]; let vec1 = fill_vec(vec0); assert_eq!(vec0, vec![22, 44, 66]); ass 阅读全文
posted @ 2024-02-27 15:33
Zhentiw
阅读(41)
评论(0)
推荐(0)
摘要：
Define a macro and use it: macro_rules! my_macro { () => { println!("Check out my macro!"); }; } fn main() { my_macro!(); } Notice that you have time 阅读全文
posted @ 2024-02-27 15:23
Zhentiw
阅读(33)
评论(0)
推荐(0)
摘要：
Methods: mod sausage_factory { // private method fn get_secret_recipe() -> String { String::from("Ginger") } // public method pub fn make_sausage() { 阅读全文
posted @ 2024-02-27 14:51
Zhentiw
阅读(36)
评论(0)
推荐(0)
浙公网安备 33010602011771号