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122. Best time to Buy and Sell Stock IISay you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. You could complete as many transactions as (ie, buy one and sell one share of the stock multiple times). However, engage in multiple transactions for the same time (ie, you must sell the

Import requests from BS4 import beautifulsoup import traceback import re def gethtmltext (URL, code= "Utf-8"): Try:r =r Equests.get (URL) r.raise_for_status () r.encoding = code print ("test") return R.text Except:return "" Def get Stocklist (list,stockurl): HTML = Gethtmltext (Stockurl, "GB2312") print ("getstocklist start") soup = beautifulsoup (HTML, ' Html.parser ') a = Soup.find_all (' A ') for i in a:try:href = i.attrs[' href '] list.append (Re.findall (R) [s][hz]\d {6} ", href" [0]) excep

An analyst at Wall Street predicted that Apple's iphone performance would be disappointing this year, and that it downgraded Apple's stock rating, a rare downgrade to Apple's share rating.The analyst, Longbow Research, has downgraded Apple's stock rating from "buy" to "neutral", citing Apple's iphone shipments in the 2018 fiscal year less than previously expected.Shawn Harrison, an analyst at Longbow study,

[LeetCode] Best Time to Buy and Buy Stock I II III IV problem solving report, leetcode=Best Time to Buy and Buy Stock I Question:An array is used to represent the daily price of the stock, and the number of I in the array indicates the price of the stock on the day I. If only one transaction is allowed, that is, only o

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Recently, I joined the beili stock trading group. Under the guidance of many mentors of my predecessors, I had a preliminary understanding of the stock market and successfully completed the transformation from Xiao Bai to cainiao. As the stock market fluctuates and the number of people in the group continues to increase, many proletarian people in North China hav

Python Crawler crawls stock informationThe project requirement in our group is to grab stock information online and then make a visual interface. The first idea was to take advantage of Java crawling, but because Java code was a bit redundant, it decided to use Python. At the beginning of the project, there was a huge problem, because the team members have limited knowledge of Python, we decided to start by

transaction management, so when buying a stock, there was a decrease in the amount of account in the database, but the number of shares did not increase.Let's say one of the demoFirst, the entire frame structure. 　　 Entity class: Bank account Accoount.java Package Com.vrv.yinkailong.bean; Bank account public class Accoount { private Integer aid; Private String Aname; Account name private double balance; Account balance Public A

Stock short term usually refers to the period of one weeks or two period, stock investors only want to earn short-run spreads, rather than pay attention to the basic situation of stocks, mainly based on technical charts analysis. Ordinary investors do short-term is usually limited to two or three days, once there is no difference can be earned or the share price fell, close the position, then go to buy othe

to simulate the keyboard and mouse to operate some software, such as brokerage version trading software and big intelligence. Another way is to find and change the underlying code of these software about the transaction commands. I don't know if it is actually feasible .. In this way, retail investors have to rely on technology if they don't have any funds. However, I think that the accuracy of prediction is higher than the timeliness of transactions under the T + 1 rule. It is good to spend ti

This article describes a simple stock acquisition tool, which collects the stock trend information of the same flush, and uses the php command line mode to write. Only some of the collection functions are completed, and the output data is copied to execl (or ET) for analysis, which is more convenient than any background. Next we will study it together. Let's just talk about the implementation code. The mai

In general, if you want to know the stock market, you must log on to the professional stock website and enter the company code to see the specific stock price. In fact, with the XMLHTTP Protocol, each of us can provide the stock market details query service on our personal website. This article describes how to use ASP

Let's talk about the differences between p2p financial systems and stock allocation systems. We are working on a case where the stock allocation system and p2p system are integrated. Therefore, we will analyze the functions of the p2p financial system and the functions of the stock allocation system. I. Core Process and Function Analysis of

Say you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. You could complete as many transactions as (ie, buy one and sell one share of the stock multiple times). However, engage in multiple transactions for the same time (ie, you must sell the stock before you buy again).Hide TagsArray

This article is an example of how Python realizes stock market information downloading. Share to everyone for your reference. Specifically as follows: This program downloads the stock market information from Yahoo Finance. ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21-22 Import urllib def getURL (URL): socket = Urllib.urlopen (URL) readsocket = Socket.read () socket.close () retur

Stock trading is fatal is not aware of their own money changes, many people want to learn to draw their own funds graphs, but the Internet and lack of specific tutorials, therefore, in order to make everyone more clear, I made this tutorial for everyone's reference, the figure is my own funds curve, is not very beautiful? The first step, first from the Pre-school resources forum download Swiffchart software, downloaded from the software for the green

The previous article mentioned some of the possible data related to stock data, and this article goes on to introduce data crawling for multiple web pages. The target captures the full financial data of Ping An Bank (000001) from 1989 to year.Data Source Analytics Address analysis Http://money.finance.sina.com.cn/corp/go.php/vFD_FinancialGuideLine/stockid/000001/ctrl/ /displaytype/4.phtml Open this address in the browser (PC) to see the

This article is in the study summary, welcome reprint but please indicate the origin: http://blog.csdn.net/pistolove/article/details/43155725 Say you have an array for which the ith element are the price of a given the Design a algorithm to find the maximum profit. You may complete as many transactions as (ie, buy one and sell one share of the stock multiple times). However, you could not engage in multiple transactions at the same time (ie, your m

Financial factors are the most sensitive to the factors affecting the price of the ticket market and stock prices. Among the financial factors, the change of interest rate level has the most direct and rapid effect on stock market. In general, when interest rates fall, the prices of stocks go up; When interest rates rise, the prices of stocks fall. Therefore, the interest rate and the relationship between i

Stock Introduction Formula 1 winners are in the right mindset? A year to do a share! Advice, easy not to throw cattle shares, graduation. Preferred cattle stocks;The most important thing for a trader is the adaptability of the plate;The qualitative must be done well. Large cycle of qualitative, weekly selection of stocks, monthly line identification. Time-sharing tracking;The law must depend on, with the 18th average line and the 18th average pric