<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[一个帅气潇洒的豆子]]></title><description><![CDATA[路虽远，行则将至；事虽难，做则必成。]]></description><link>https://blog.youkuaiyun.com/opooc</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; opooc]]></copyright><item><title><![CDATA[深度学习-梯度下降算法代码实现]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/124996463</link><guid>https://blog.youkuaiyun.com/opooc/article/details/124996463</guid><author>opooc</author><pubDate>Fri, 27 May 2022 07:24:04 +0800</pubDate><description><![CDATA[x_data = [1.0, 2.0, 3.0]
y_data = [2.0, 4.0, 6.0]
 
w = 1.0

def forward(x):
    return x * w
 
def cost(xs, ys):
    cost = 0
    for x, y in zip(xs, ys):
        y_p = forward(x)
        cost += (y_p - y) ** 2
    return cost / len(xs)
    
def gradint(x]]></description><category></category></item><item><title><![CDATA[深度学习-线性模型代码实现]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/124994257</link><guid>https://blog.youkuaiyun.com/opooc/article/details/124994257</guid><author>opooc</author><pubDate>Thu, 26 May 2022 22:40:52 +0800</pubDate><description><![CDATA[import numpy as np
import matplotlib.pyplot as plt
 
x_data = [1.0, 2.0, 3.0]
y_data = [2.0, 4.0, 6.0]
 
 
def forward(x):
    return x*w
 
 
def loss(x, y):
    y_pred = forward(x)
    return (y_pred - y)**2
 

w_list = []
mse_list = []
for w in np.arange]]></description><category></category></item><item><title><![CDATA[2021-07-02 swift大礼包]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/118411931</link><guid>https://blog.youkuaiyun.com/opooc/article/details/118411931</guid><author>opooc</author><pubDate>Fri, 02 Jul 2021 13:11:00 +0800</pubDate><description><![CDATA[全面的Swift学习资料整理_walkerwqp的博客-优快云博客
    

    
        
            
                全面的Swift学习资料整理
            
            
                
                    
                    
...]]></description><category></category></item><item><title><![CDATA[一个比较好玩的智力题]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/114852837</link><guid>https://blog.youkuaiyun.com/opooc/article/details/114852837</guid><author>opooc</author><pubDate>Mon, 15 Mar 2021 21:30:47 +0800</pubDate><description><![CDATA[问题描述

//
//  ViewController.m
//  iOSzonglan
//
//  Created by doushuyao on 2021/3/12.
//

#import "ViewController.h"

@interface ViewController ()

@end




@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    for(int i ]]></description><category></category></item><item><title><![CDATA[openmpi并行计算PI的值]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/112337333</link><guid>https://blog.youkuaiyun.com/opooc/article/details/112337333</guid><author>opooc</author><pubDate>Thu, 07 Jan 2021 20:51:20 +0800</pubDate><description><![CDATA[#include &lt;stdio.h&gt;
#include &lt;math.h&gt;
#include &lt;mpi.h&gt;

int main(int argc, char *argv[]) {
	//初试化一个用来保存并行和的中间单位cur，一个主线程的pi
	double pi ,cur;
	//n变量代表是把[0,1]分成2000份
    int n = 2000;
    //size变量用来拿到是分配的线程数，
    //rank变量代表
	int size, rank;
]]></description><category></category></item><item><title><![CDATA[我的2020]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/112209961</link><guid>https://blog.youkuaiyun.com/opooc/article/details/112209961</guid><author>opooc</author><pubDate>Mon, 04 Jan 2021 23:13:38 +0800</pubDate><description><![CDATA[时间又是这么的仓促，一晃眼的功夫到了2020的年末，仿佛这一年就跟没过一样，不仅要感叹，时间真的太快了，最近的课业不是很多了，就剩最后的期末考试了，今天就抽点时间来写写这一年的所想与所悟。
说真的，在19年的9月份，我预料到了会发生一次全球性的病毒爆发，但是没想到这场病毒来的这么的仓促，仓促的令人窒息，若不是李兰娟同志宣布让武汉封城，估计这场灾难会蔓延到全国各地，呈星星之火之势。这里要感谢钟南山同志，李兰娟同志以及所有的医护工作者还有所有为这场疫情做出贡献的人，你们是这个是世界的勇士，是祖国的骄傲，感谢你们]]></description><category></category></item><item><title><![CDATA[python动态监测网页内容后邮件通知]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/111224771</link><guid>https://blog.youkuaiyun.com/opooc/article/details/111224771</guid><author>opooc</author><pubDate>Tue, 15 Dec 2020 16:44:51 +0800</pubDate><description><![CDATA[#coding=utf-8
import urllib.request
import smtplib
from email.header import Header
from email.mime.text import MIMEText
from bs4 import BeautifulSoup
import ssl
import time

context = ssl._create_unverified_context()
url='https://yjs.qfnu.edu.cn/xsgz.htm';]]></description><category></category></item><item><title><![CDATA[python自动打卡]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/108758360</link><guid>https://blog.youkuaiyun.com/opooc/article/details/108758360</guid><author>opooc</author><pubDate>Wed, 23 Sep 2020 18:07:13 +0800</pubDate><description><![CDATA[简介

1.推荐使用selenium库+FireFox_linux浏览器+geckodriver驱动+crontab定时,
2.因为某图系统的底层是使用的data存储，cookie存于服务器与服务器之间,又Chrome浏览器在mac和Linux系统下不支持跨域，所以推荐使用FireFox.
3.另外

使用思路

使用服务器，创建三个python3文件，如下代码所示，使用pip安装selenium库，下载FireFox_linux要与驱动的版本号保持一致.然后创建3个执行python文件sh脚本,使用cro]]></description><category></category></item><item><title><![CDATA[《面试》(计算机网络)]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105571523</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105571523</guid><author>opooc</author><pubDate>Fri, 17 Apr 2020 01:42:06 +0800</pubDate><description><![CDATA[一、 计算机网络体系结构
1. 什么是计算机网络？

计算机网络就是一些相互连接的、以共享资源为目的的、自治的计算机的集合。

2. 试简述分组交换的要点

报文分组，加首部
经路由器存储转发
在目的地合并

3. 试从多个方面比较电路交换、报文交换和分组交换的主要优缺点。

电路交换：端对端通信质量因约定了通信资源获得可靠保障，对连续传送大量数据效率高。(整个报文的比特流连续地从源点到终点，如同...]]></description><category></category></item><item><title><![CDATA[计算机图形学(笔记版)---从CRT到3D显示(上)：CRT的前世今生]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105523073</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105523073</guid><author>opooc</author><pubDate>Tue, 14 Apr 2020 22:28:53 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[计算机图形学(笔记版)---输入设备]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105523052</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105523052</guid><author>opooc</author><pubDate>Tue, 14 Apr 2020 22:27:17 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[计算机图形学(笔记版)---图形系统浅析]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105523027</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105523027</guid><author>opooc</author><pubDate>Tue, 14 Apr 2020 22:26:44 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[计算机图形学(笔记版)---有趣的图形应用和研究]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105522987</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105522987</guid><author>opooc</author><pubDate>Tue, 14 Apr 2020 22:25:54 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[计算机图形学(笔记版)---初识图形学]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105522956</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105522956</guid><author>opooc</author><pubDate>Tue, 14 Apr 2020 22:24:48 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[《汇编语言》王爽著-第3版--各种实验]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105438684</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105438684</guid><author>opooc</author><pubDate>Fri, 10 Apr 2020 17:47:27 +0800</pubDate><description><![CDATA[assume cs:codesg ,ds:data,ds:table
data segment
db ‘1975’,‘1976’,‘1977’,‘1978’,‘1979’,‘1980’,‘1981’,‘1982’,‘1983’
db ‘1984’,‘1985’,‘1986’,‘1987’,‘1988’,‘1989’,‘1990’,‘1991’,‘1992’
db ‘1993’,‘1994’,‘19...]]></description><category></category></item><item><title><![CDATA[操作系统(笔记版)---进程同步之Unix域套接字]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105305170</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105305170</guid><author>opooc</author><pubDate>Sat, 04 Apr 2020 04:16:31 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[操作系统(笔记版)---进程同步之共享内存]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105305169</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105305169</guid><author>opooc</author><pubDate>Sat, 04 Apr 2020 04:16:23 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[操作系统(笔记版)---使用fork系统调用创建进程]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105305168</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105305168</guid><author>opooc</author><pubDate>Sat, 04 Apr 2020 04:16:15 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[操作系统(笔记版)---线程同步方法总结]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105305165</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105305165</guid><author>opooc</author><pubDate>Sat, 04 Apr 2020 04:16:06 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[操作系统(笔记版)---线程同步之条件变量]]></title><link>https://blog.youkuaiyun.com/opooc/article/details/105305162</link><guid>https://blog.youkuaiyun.com/opooc/article/details/105305162</guid><author>opooc</author><pubDate>Sat, 04 Apr 2020 04:15:44 +0800</pubDate><description><![CDATA[]]></description><category></category></item></channel></rss>