{ append_to_string(buf, |b| read_until(self, b'\n', b)) } } //返回一个迭代器,将buf按输入的参数做分离 fn split(self, byte: u8) -> Split<Self> where Self: Sized, { Split { buf: self, delim: byte } } //返回一个迭代器,将buf按行进行
AI代码解释 use std::convert::TryInto;// <1>fnmain(){leta:i32=10;letb:u16=100;ifa<b.try_into().unwrap(){// <2>println!("Ten is less than one hundred.");}} 将try_into() 函数添加在 u16 类型 b.try_into() 返回一个 i32 类型的值,try_into()会在转换出错的时候返回错误信息。(...
String>{returnifno%2==0{Ok(true)}else{Err("输入值，不是偶数".to_string())}}letresult=...
fn main() { if let Ok(lines) = read_lines("/proc/stat") { lines.for_each(|line| { if let Ok(cpu_line) = line { if cpu_line.starts_with("cpu ") { let parts: Vec<&str> = cpu_line.split_whitespace().collect(); let user: u64 = parts[1].parse().unwrap(); let nice:...
LinesAny<'a>: 该结构体实现了一个迭代器,用于按行迭代字符串,支持不同的换行符的处理。 SplitWhitespace<'a>: 该结构体实现了一个迭代器,用于按空白字符(空格、制表符、换行符等)分割字符串。 SplitAsciiWhitespace<'a>: 该结构体实现了一个迭代器,用于按ASCII空白字符(空格、制表符、换行符等)分割字符串。
pub fn split_off(&mut self, at: usize) -> String 1.将字符串从指定索引位置分成两个 返回一个新分配的字符串。 self包含字节[0,at),返回的String包含字节[at,len)。 at必须在UTF-8代码点的边界上。 自身(self)的容量不会改变。 如果at不在UTF-8代码点边界上,或者超出字符串的最后一个代码点,则...
comex/rust-shlex [shlex] - Split a string into shell words, like Python's shlex. Eliah-Lakhin/lady-deirdre - A framework for new programming languages and LSP servers. Folyd/robotstxt - Port of Google's robots.txt parser and matcher C++ library freestrings/jsonpath - JsonPath engine. We...
linesSplit single string into rows, one per line parse patternConvert text to a table by matching the given pattern sizeGather word count statistics on the text split-column sep ...column-namesSplit row contents across multiple columns via the separator, optionally give the columns names ...
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fn Future::or_else (Future<T, E>, FnOnce(E) -> IntoFuture<T, F>) -> Future<T, F> fn Future::flatten (Future<Future<T, E>, Into<E>>) -> Future<T, E> // Joining (waiting) futures