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框架仓库https://github.com/paritytech/jsonrpc#readme使用1.依赖[dependencies]jsonrpc-core = "18.0.0"jsonrpc-core-client = "18.0.0"jsonrpc-http-server = "18.0.0"jsonrpc-ipc-server = "18.0.0"jsonrpc-tcp-server= "18.0.0"jsonrpc-ws-server = "18.0.0"js

题目描述力扣// Definition for singly-linked list.#[derive(PartialEq, Eq, Clone, Debug)]pub struct ListNode { pub val: i32, pub next: Option<Box<ListNode>>,}struct Solution {}impl Solution { pub fn add_two_numbers( l1

不需要引入第三方依赖，直接用系统自带的库。use std::time::{SystemTime, UNIX_EPOCH};match SystemTime::now().duration_since(UNIX_EPOCH) { Ok(n) => println!("1970-01-01 00:00:00 UTC was {} seconds ago!", n.as_secs()), Err(_) => panic!("SystemTime before UNIX E