use chrono::{DateTime, Utc, Duration}; fn main() { let mut utc_time: DateTime<Utc> =...
usechrono::{Duration,Local};letnow=Local::now();letyesterday=now-Duration::hours(24); chrono time duration methods 时间间隔: usechrono::{Duration,Local};letnow=Local::now();letyesterday=now-Duration::hours(24);lethour_interval=(now-yesterday).num_hours(); chrono time interval methods 总结...
let now = Local::now(); let yesterday = now - Duration::hours(24); 1. 2. 3. 4. 时间间隔: AI检测代码解析 use chrono::{Duration, Local}; let now = Local::now(); let yesterday = now - Duration::hours(24); let hour_interval = (now - yesterday).num_hours(); 1. 2. 3. 4...
使用到chrono库的checked_add_signed方法,如果无法计算出日期和时间,方法将返回 None。比如当前时间加一天、加两周、加3小时再减4秒,代码如下: AI检测代码解析 use chrono::{Duration, Local}; fn main() { // 获取当前时间 let now = Local::now(); println!("{}", now); let almost_three_weeks_fro...
时间格式化会用到chrono库,用format方法进行时间格式化;NaiveDateTime::parse_from_str方法进行字符串转DateTime,代码如下: use chrono::{DateTime, Local, ParseError, NaiveDateTime};fn main() -> Result<(), ParseError>{let now: DateTime<Local> = Local::now();// 时间格式化let ymdhms = now.format(...
use chrono::{Datelike, Timelike, Utc};fn main() {let now = Utc::now();let (is_pm, hour) = now.hour12(); //把时间转化为12小时制println!("The current UTC time is {:02}:{:02}:{:02} {}", //设置格式hour,now.minute(),now.second(),if is_pm { "PM" } else { "AM" ...
Chrono必须支持系统本地时区(Local::now())等。 该系统本地时区必须与 C 的localtime*返回的内容相匹配。 避免该漏洞有一个解决办法就是用time0.3 代替chrono 最近几天chrono也发布了一个公告:no time for chrono[7],主要内容是: chrono用户可以切换到time0.3 ...
向我们的依赖项添加chronoCrate 后,便可在代码中使用它提供的功能,例如: usechrono::{DateTime, Local}; fnmain(){ println!("Hello, world!"); letlocal: DateTime =Local::now(); println!("Today is {}", local.format("%A")); } 在此程序中,我们获得了当前(本地)日期和时间,并将设置为一周中...
} I run every 30 seconds",chrono::Utc::now());}).unwrap(),);sched.add(Job::new_one_shot(Duration::from_secs(18),|_uuid,_l|{println!("{:?} I'm only run once",chrono::Utc::now());}).unwrap());sched.add(Job::new_one_shot_async(Duration::from_secs(16),|_uuid,_l|...
Leap seconds can be represented, but Chrono does not fully support them. SeeLeap Second Handling. Crate features Default features: alloc: Enable features that depend on allocation (primarily string formatting). std: Enables functionality that depends on the standard library. This is a superset ofal...