Python2.7 csv format file operation

CSV (Comma-Separated Values ​​file format, sometimes called character-separated values, because the separating character can also be anything other than a comma), whose files store tabular data (numbers and text) in plain text.

CSV is a general, relatively simple file format that can be opened with Notepad, Excel, etc.

1> Plain text, using a character set such as ASCII, Unicode, EBCDIC or GB2312;
2> Consists of records (typically one record per line);
3> Each record is separated into fields by a delimiter (typical delimiter There are commas, semicolons, or tabs; sometimes delimiters can include optional spaces);

4> Each record has the same sequence of fields.

# encoding: utf-8
import csv
from time import sleep


class Csv_Operator( object ):
     def __init__ ( self ):
         """You can pass in the initial parameter file name or path """
 pass
     def csv_write ( self ):        

        arr = [ 'abc' , '123' , ' hahaha ' ]   #Array arr2
         = [[ 132 , 2543 , 323 ] , [ ' often ' , 'big' , 'center' ] , [ '[email protected] ' , 'hello #comment' , '%s%d' ]]   # two-dimensional array
         tup = (( 'fg' , 'nice' , 'home' ) , ( 1111 ,2222, 3333 ) , ( '!2123' , '@369.email.cn' , '#4444' ))   # Yuanzu
         dic = { 'name' : '123Admin' ,
 'age' : 23 ,
 'address' : ' Nanjing Road 128 '
 }   #dictionary csvfile = open ( 'D: \\ test.csv
 ' , 'wb+' )   # python2.x uses 'b' to remove blank lines, python3.x uses the newline attribute to remove blank lines
                                                             writer = csv.writer(csvfile)
        writer.writerow(arr)
        writer.writerows(arr2)
        writer.writerows(tup)
        writer.writerow([key for key in dic])
        writer.writerow([dic[key] for key in dic])
        csvfile.close()

    def csv_read(self):

        csvfile = open ( 'D: \\ test.csv' , 'rb' )   #read file content
         reader = csv.reader(csvfile)
         for line in reader:
             if line:
                 print
                 line
        csvfile.close()


if __name__ == '__main__':
    csvnew = Csv_Operator()
    csvnew.csv_write()
    print
'end'    

I saw that it would be garbled on the Internet, but it didn't appear on my side, so I didn't write a solution.