data analysis computer programs

.xls)Excel. Application xlApp = new Excel. Application ();Object missing = System. Reflection. Missing. Value;If (xlApp = null){MessageBox. Show ("an Excel object cannot be created, maybe your computer has not installed Excel ");Return;}Excel. Workbooks workbooks = xlApp. Workbooks;Excel. Workbook workbook = workbooks. Add (Excel. XlWBATemplate. xlWBATWorksheet );Excel. Worksheet worksheet = (Excel. Worksheet) workbook. Worksheets [1]; // get sheet1E

1. PrefaceRecently (2018.4.1) in the busy schedule to open a blog, like to be able to learn what they want to precipitate down, this is my system to learn python, called the data Analyst and algorithm engineer Road plan, hope to be interested in the same goal struggle data ape together to communicate and learn.2. Python Learning Plan 2.1 study plan(1) Find a simple and easy-to-understand, routine and better

customize the application layer protocol. The WEB uses HTTP as the application layer protocol to encapsulate HTTP text information, and then uses TCP/IP as the transport layer protocol to send it to the network.Which protocol does the two Web programs use to transmit data point to point? Let's take a look at some descriptions and features of the http protocol: www.2cto.com1. the HTTP Protocol (HyperText Tr

Malicious programs can use fan noise to steal data from physical isolation systems Computer physical isolation does not mean that the data in the data can be carefree. Many studies have shown that electromagnetic radiation and heat radiation can be used to steal

recovering normal data to ensure reliable transmission of data information. The main protocol used in this protocol layer is TCP. This protocol can be used to create end-to-end one-sentence communication. However, the data information in the transport layer mainly depends on the effective Services provided by the network layer, which is greatly affected by the n

Many netizens reflect the slow speed of the Internet, even if the bandwidth added to a few trillion will still have friends to reflect the opening of a webpage, send a message to wait a long time. In fact, the telecommunications sector not only to ensure the stability of the network, but also to ensure that a normal network speed. In fact, I know that wan speed and two factors Related: one is the user's computer, the second is the network environment.

Time: The program may be accessed again at other timesSpatial locality: Data surrounding the program may also be accessed. All programs must rely on the chip to work.5. The program is the composition of instructions and data, to allow the machine to read the program, the program must be written in binary, such a program is called machine language (too difficult)

Time: The program may be accessed again at other timesSpatial locality: Data surrounding the program may also be accessed. All programs must rely on the chip to work.5. The program is the composition of instructions and data, to allow the machine to read the program, the program must be written in binary, such a program is called machine language (too difficult)

Taking the implementation of the data backup function of the Communication soft switch as the research object and focusing on the comprehensive application of the computer platform, this paper briefly analyzes the design idea of the Data Backup System of the Communication soft switch based on the computer platform, on

calls the F function. That is x+1, since EAX is responsible for saving the results of the returned function, there are:Addl $1,%eaxAfter the main function returns, after AH: I can't make up my story ...Computer work, it can be said that the work of the operating system is to continuously execute a loop, the loop holds the context of the previous loop, the data, and then for the current loop to open up a co

applications that run well in DOS or Windows 3.1 in Win 98. Win 98 is 32-bit, although it is known to be compatible, but there are many places that cannot be reconciled with 16-bit applications. There are also cases, such as the normal use of the peripheral driver under Win 95, when the operating system upgrade, there may be problems, so that the system crashes or does not start properly. In this case, you should find a new driver for your peripherals. "Too many

Click Traffic Real-time statistics: The calculation of top3 popular ads in each of the provinces of the 118th talk-Ads Click traffic Real-time statistics: Calculate the daily ads in the last 1 hours sliding window of the click Trend 1th 19 talk-Ad Click Traffic Real-time statistics: achieve ha high availability for real-time computing programs 120th-AD Click Traffic Real-time statistics: Performance tuning for real-time computing

Tags: IT computer knowledge computer hardware computer repair Daquan computer maintenance knowledge Analysis of computer crash Every person who has used a computer may have experien

trouble. For example, there are too many things on the desktop, virtual memory is too small, c disk space is not enough. Set Virtual memory There is a very large data interchange file on the hard drive, it is reserved for the system of virtual memory as a place, many applications are often used, so the system needs the main memory for a large number of data access, so the speed of access to this file is

On the computer, we know that there are memory, CPU, hard disk, keyboard, mouse, monitor and so on. So how did they get connected?If each peripheral is connected to the direct CPU, then the CPU will have a lot of pins, but we know that the computer now has a variety of more than a number of hardware connections, to achieve the CPU with each hardware has a direct connection between the line is not realistic.

As a professional network administrator not only to ensure the stability of the network, but also to ensure a normal network speed. At this point, I would like to analyze the causes of the slow speed of computer surfing: One is the user's computer, the other is the network environment. First, the user computer aspect 1. Com