python----csv的使用

详细的内容参考：https://docs.python.org/2/library/csv.html#module-csv

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打开csv

# -*- coding: utf8 -*-
import csv
with open('test.csv','rb') as my:
    lines=csv.reader(my)
    for line in lines:
        print line

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# -*- coding: utf8 -*-
import csv
with open('text01.csv','wb') as my:
    mywriter=csv.writer(my)
    mywriter.writerow([1,'a'])
    mywriter.writerow([2,'b'])
    lists=[[3,5],[4,6]]
    mywriter.writerows(lists) 

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# -*- coding: utf8 -*-
import csv
with open('text01.csv','rb') as my:
    lines=csv.reader(my,csv.register_dialect('mydialect',delimiter='|', quoting=csv.QUOTE_ALL))
    print lines.line_num
    for line in lines:
        print line

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# -*- coding: utf8 -*-
import csv
with open('text.csv', 'wb') as csvfile:
    spamwriter = csv.writer(csvfile, delimiter=' ',
                            quotechar='|', quoting=csv.QUOTE_MINIMAL)
    spamwriter.writerow(['tiger'] * 5 + ['pig '])
    spamwriter.writerow(['cat', 'mouse', 'dog'])