我想明白了将Result<serde_json::Value, ValidationError>更改为HttpResponse并返回HttpResponse中的json。
the trait `PartialEq<std::option::Option<std::string::String>>` is not implemented for `std::string::String` match &s1 { Some(s2) => todo!(), None => todo!(), } panic!("xx is None");日志输出一下信息,且后续代码无法执行。。 thread 'main' panicked at 'xx is None', src/mai...
; | ^ the trait `From<VarError>` is not implemented for `MyError` | = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait = note: required because of therequirementson the impl of `FromResidual<Result<Infallible, VarError...
` operator in a function that returns `()`|= help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()` 因为? 要求 Result<T, E> 形式的返回值,而 main 函数的返回是 (),因此无法满足,那是不是就无解了呢? 实际上 Rust 还支持另外一种形式的 main 函...
impl B for BImpl { fn bar(self) { unimplemented!(); } } ...give me this error: Compiling testproject v0.0.1 (file:///home/virtlink/projects/orion/testproject) src/lib.rs:6:1: 8:2 error: the trait `B` is not implemented for the type `BImpl` [E0277] ...
error[E0277]: the trait bound `f32: From<f64>` is not satisfied --> /tmp/repro.rs:2:13 | 16 | let x = f32::from(3.14); | ^^^ the trait `From<f64>` is not implemented for `f32` | = help: the following other types implement trait `From<T>`: <f32 as From<bool>>...
A function is a block of code that does a specific task. We separate the code in our program into blocks based on task. This separation makes the code easier to understand and maintain. After we define a function for a task, we can call the function when we need to do that task. ...
pub trait Error:Debug+Display{fndescription(&self)->&str{"description() is deprecated; use Display"}#[rustc_deprecated(since="1.33.0",reason="replaced by Error::source, which can support \ downcasting")]fncause(&self)->Option<&dyn Error>{self.source()}fnsource(&self)->Option<&(dyn ...
According to the survey, 24% of Rustaceans have used Rust for more than one year. This is an increase of 4 percentage points fromlast year, but it’s still not easy to find experienced Rust developers. Expert analysis Andre: “People who have used Rust in the past are by and large ...
Username for 'https://gitee.com': userName Password for 'https://userName@gitee.com':#私人令牌 Rust通用代码生成器:莲花 动词算子式通用代码生成器阵列全面开源 动词算子式通用代码生成器阵列已全面开源。本通用代码生成器的两个Jar软件依赖如下,皆已全部开源: ...