Cocos2d C ++ parses CSV and cocos2d parses csv1. What is CSV
Success,
It is a file that uses English ',' as the separator. This structure is a bit like the structure of a database table, because it is very simple, so it has a wide range of applicability, Excel can export CSV, Sqlite and other databases can also export CSV
Del format is similar to CSV, my test file here Test.del is a set of data from the DB2 database.The MAVEN coordinates of the Apache Commons CSV are: org.apache.commons commons-csv 1.5Test procedure:Package test;import Java.io.File;import Java.io.FileInputStream;import java.io.IOException;import Java.io.InputStream;import Java.io.InputStreamReader;import
Import CSV is required before use.
Here is an example of reading a CSV file:
Csvreader = Csv.reader (open (' avdecode_list.csv ', ' RB ') #以只读方式取得csv文件中内容 for
row in Csvreader: #行循环
Parameterstr = ', '. Join (Row) #通过逗号连接每行每个单元格的内容
parameters = Parameterstr.split (', ') #得到每个单元格的内容
Name = parameters[1] #将第一个单元格的内容赋值给nam
=[] $ - #循环数组 - forListinchlists: the - #获取每一行数据 and use a comma to unpack the user name and passwordWuyi#list ="grace,1" the#list. Split (",") =[grace1,1] #csv是用逗号分隔, the following list.split (",")[0] is the 1th element in the Grace1,list.split (",")[1the 2nd element in the] is 1 -Username=list.split (",")[0].strip () WuPwd= List.split (",")[1].strip () - About print (userName) $ print (PWD) - - #开始浏览登陆 -Driver =Webdriver. Firefox () ADriver
Mysql large tables are split into csv files for export, and mysql is split into csv files for export.
Recently, the company has tens of millions of rows of large tables that need to be split into different csv files according to the city id field.
I wrote an automated shell script.
Under/home/hdh
Linux-xud0:/home/hdh # llTotal 16-Rwxrwxrwx 1 root 902 Dec 28 07:47
Converts a able to a CSV file, and a DataTable to a csv file.
DataTable is used in. net projects to cache data. DataTable indicates a table with data in memory. CSV files were first used in a simple database. Because of their simple format and strong openness, they were first marked by their own gallery by the scanner. A csv
Mysql exports csv files separated by commas (,) and mysql exports csv files by commas (,).
In actual work, CleverCode often needs to export some reports or log data. If you directly create a page, if the number of times is not large, the requirements are also different. Therefore, exporting csv files directly is more intuitive.1 Export
Tags: style blog class code C colorImport CSV data to Sqlite. Import CSV data to SQLite.When you do the data import, you just need to clarify the two o'clock.1, Extract Title as field name.2, data is written to the data pool.Here SQLite is good for us to solve this kind of problem.The Fieldsnames attribute solves the problem of extracting title very high, while the data pool, SQLite insert accepts the list
This article mainly introduces the example of reading a csv file from python. This example briefly describes how to operate a csv file in python. For more information, see the following code:
Import csvFor line in open ("test.csv "):Name, age, birthday = line. split (",")Name = name. strip ('\ t \ r \ n ');Age = age. strip ('\ t \ r \ n ');Birthday = birthday. strip ('\ t \ r \ n ');Print (name + '\ t' +
Asp.net exports Excel/Csv text format data, csv text format
I just started to work on Excel-related projects, so I should record all the problems regardless of the size.
By chance, when adding data, all the data is converted into numbers, and the result output is automatically converted into scientific notation. This is a powerful excel function that can automatically recognize numbers and strings, it's too
#-*-coding:utf-8-*-ImportMathImportReImportCSVImportreprdefean_checksum (eancode):"""returns the checksum of a EAN string of length, returns-1 if the string has the length of the wrong""" ifLen (eancode)! = 13: return-1Oddsum=0 Evensum=0 Total=0 Eanvalue=Eancode Reversevalue= Eanvalue[::-1] Finalean=reversevalue[1:] forIinchRange (len (Finalean)):ifI% 2 = =0:oddsum+=Int (finalean[i])Else: Evensum+=Int (finalean[i]) Total= (Oddsum * 3) +evensum Check= Int (10-math.ceil (total% 10.0)
Java reads and exports csv files of multiple types of data, and java reads and exports csv files
1. Main Function
Public class csvtest {Public static void main (String [] args ){
List
Boolean isSuccess = CSVUtils. exportCsv (new File ("D:/1.csv"), dataList );System. out. println (isSuccess );
}
}
2. Car
Public class Car {String id;Double utc;Double x;Double y;Fl
Commons-csv is a toolkit provided by the Apache Open source organization for reading and writing CSV files, simpler, straightforward code:
Package com.gujin.csv;
Import Java.io.FileReader;
Import Java.io.PrintWriter;
Import Org.apache.commons.csv.CSVFormat;
Import Org.apache.commons.csv.CSVParser;
Import Org.apache.commons.csv.CSVPrinter;
Import Org.apache.commons.csv.CSVRecord;
Import Org.junit.Test; p
The first paragraph is read file, download.
The second paragraph is a string download.
Copy the Code code as follows:
$fileName = "Prefs.csv";Header (' Content-type:application/octet-stream ');Header (' content-disposition:attachment; Filename= '. $fileName);Header (' content-transfer-encoding:binary ');Header (' Content-length: '. FileSize ($fileName));ReadFile ($fileName);
Copy the Code code as follows:
$fileName = "Pref_". Date ("Ymdhis"). ". csv
Python csv module, pythoncsv
1 import csv # Comma Separated Value 2 3 # class Dialect 4 # delimiter = None # separator 5 # doublequote = None # The element is a quote, double the quote. The default value is true. If it is set to false, you need to set the delimiter. Otherwise, an error is returned. 6 # escapechar = None # Escape Character 7 # lineterminator = None # line terminator 8 # quotechar = None # re
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