AI代码解释 packagepers.metaworm;publicclassRustJNI{static{System.loadLibrary("rust_java_demo");}publicstaticvoidmain(String[]args){init();System.out.println("test addInt: "+(addInt(1,2)==3));RustJNI jni=newRustJNI();System.out.println("test getThisField: "+(jni.getThisField("stringFi...
let result = String::from("a demo string"); // 直接使用方法返回值(或者变量),之后没有分号, // 是将其作为返回值处理, // 不用像c语言一样return result.as_str() result.as_str() } 编译的时候会报错“result变量没有足够长的生命期”: error[E0597]: `result` does not live long enough -...
string_cache:为Rust提供的字符串缓存库,池化常用字符串以节省内存和提高性能。 moka:一个受Java Caffeine项目启发的高性能、并发缓存库适用于Rust。 lru:一个提供最近最少使用(LRU)缓存算法实现的Rust库。 ustr:一个高效且对外部函数接口(FFI)友好的Rust字符串内联库。 quick_cache:一个轻量级、高性能的并发缓存实...
value: T, }#[endpoint]asyncfnuse_string(body: JsonBody<MyObject<String>>) ->String{format!("{:?}", body) }#[endpoint]asyncfnuse_i32(body: JsonBody<MyObject<i32>>) ->String{format!("{:?}", body) }#[endpoint]asyncfnuse_u64(body: JsonBody<MyObject>) ->String{format!("{:?}...
identifier (unique within the parent UI). For instance: by defaulteguiuses the window titles as unique IDs to store window positions. If you want two windows with the same name (or one window with a dynamic name) you must provide some other ID source toegui(some unique integer or string...
server 端的代码还是比较清晰的,首先通过 tonic::include_proto! 宏引入 grpc 定义,参数是 proto 文件中定义的 package 。我们重点说说 server_streaming_echo function 。这个 function 的处理流程明白了,其他的流式处理大同小异。首先 通过 std::iter::repeat function 定义一个迭代器;然后构建 tokio_stream 在本...
letmutname=String::from("cml");println!("输出中带花括号:{ { {} }}", name); 以上代码输出: 输出中带花括号:{ cml } 输出非基础类型 println!("输出一个结构体,a={:?}", a); 输入 letmutguess=String::new(); io::stdin().read_line(&mutguess).expect("无法读取行"); ...
extern_crate_decl : "extern" "crate" crate_name crate_name: ident | ( string_lit "as" ident ) 一个*extern crate声明*指定了一个外部包装箱的依赖。接着外部包装箱被绑定在定义为由extern_crate_decl提供的ident的作用域中。外部包装箱在编译时被解析为一个特定的soname,而一个运行...
While you can benefit from building a searcher once and iterating over all matches in a single string, you cannot reuse that searcher to search other strings. This might come up when, for example, searching a file one line at a time. You'll need to re-build the searcher for every ...
fn main(){let s1 = String::from("hello");//s1 owns the stringdatalet s2 = s1;//Ownership of the stringdatais moved to s2//println!("{}, world!",s1);//This line would cause a compile-time error because s1 no longer owns the string ...