摘要: 11.21 打工 copyproperties try { if (StringUtils.isBlank(modelCode)) { return R.fail("modelCode不能为空"); } ModelCenter result = this.lambdaQuery().eq(Model 阅读全文
posted @ 2024-11-21 18:18 vast_joy 阅读(11) 评论(0) 推荐(0)
摘要: 11.18 学习 1.sql select m.user_id,round(ifnull(cfnum/p,0),2) confimation_rate from (select a.user_id,ifnull(num,0) p from Signups a left join (select us 阅读全文
posted @ 2024-11-20 13:49 vast_joy 阅读(18) 评论(0) 推荐(0)
摘要: easy_lab2 作业地址:https://github.com/BUPT-OS/easy_lab/tree/lab2 以下均为multiply.cpp代码 22分多线程,分块,调整计算顺序 #include "multiply.h" #include <emmintrin.h> // SSE2 阅读全文
posted @ 2024-11-18 14:52 vast_joy 阅读(24) 评论(0) 推荐(0)
摘要: sql 1661 保留小数:ROUND(x,y)求参数x的四舍五入的值,保留y位小数 思路:分两表分别查线程对应的start和end然后相减 # Write your MySQL query statement below select a1.machine_id,ROUND(2*sum(a1.ti 阅读全文
posted @ 2024-11-15 15:31 vast_joy 阅读(17) 评论(0) 推荐(0)
摘要: 11.12 ali-oss上传图片 1.上传到服务器: @PostMapping("/upload") public String upload(MultipartFile file) { if (file.isEmpty()) { return "图片上传失败"; } System.out.pri 阅读全文
posted @ 2024-11-12 15:56 vast_joy 阅读(43) 评论(0) 推荐(0)
摘要: docker desktop报错0x80070422 deploying WSL2 distributionsensuring main distro is deployed: deploying "docker-desktop":importing WSL distro"无法启动服务,原因可能是已 阅读全文
posted @ 2024-11-08 16:24 vast_joy 阅读(2043) 评论(0) 推荐(0)
摘要: bupt_os lab1作业 1.编写代码 uthread.h #ifndef UTHREAD_H #define UTHREAD_H #define STACK_SIZE 4096 enum thread_state { THREAD_INIT, THREAD_RUNNING, THREAD_ST 阅读全文
posted @ 2024-10-31 14:32 vast_joy 阅读(41) 评论(0) 推荐(0)
摘要: leetcode560 和为k的子数组 package java2024_10.day30; import java.util.HashMap; public class leetcode560 { /*思路:前缀和+哈希表 a[j]-a[i]=k 即a[i]=a[j]-k 遍历到下标j的时候,先判 阅读全文
posted @ 2024-10-31 14:24 vast_joy 阅读(21) 评论(0) 推荐(0)
摘要: 学习java多线程 package com.haole.testdemo1; class RunnableDemo3 implements Runnable{ private String name; private Thread x; RunnableDemo3(String a){ name=a 阅读全文
posted @ 2024-10-18 20:02 vast_joy 阅读(27) 评论(0) 推荐(0)
摘要: session和cookie @RequestMapping("/login") public String userLogin(UserLoginRequest request,HttpServletRequest httpServletRequest){ String username=requ 阅读全文
posted @ 2024-10-18 00:43 vast_joy 阅读(32) 评论(0) 推荐(0)