python案例实操_python对表的操作例子_代码

import csv

file=r'd:/4.csv'

class CSV_Analyse:

def _read_csv (self,file):

reader =csv.reader(open(file,"rd"))

return [line for line in self.codes(reader)]

def codes(self,reader):

for line in reader:

yield[unicode(cell,'gb10830')for cell in line]

def result_list(self,file):

pm_call=[]

all_rows_no_title=self._read_csv(file)[1:] #如果不需要表头，可以用这行去掉；

#[1:]指从1开始内容，而不是从默认的0开始

for line in all_rows_no_title:

if "1" in line[2]:

pm_call.append([line[3],line[4],line[5]])

else:

other_call.append([line[8],line[9],line[10],line[11]])

return pm_call,other_call

>>> from pyExcelerator import *

>>> title=('time','a1','a2','a3','a4','a5','a6','a7','a8','a9','a10','a11','a12')

>>> def creat_xls(call_tuple):

workbook=Workbook() #生产一个空的工作簿，名字为workbook

mingxi_sheet=workbook.add_sheet(u'频繁项目级')

for col_num,item in enumerate(title): #写入固定标题头

mingxi_sheet.write(0,col_num,item)

for row,line in enumerate(call_tuple[0]): #写入所需的内容

for col,item in enumerate(line[0:-1]):

mingxi_sheet.write(row+1,col,item)

for col_num in range(len(title)): #设置列的宽度

mingxi_sheet.col(col.num).width=5000

workbook.save('我的表格.xls')

>>> dealcall=CSV_Analyse() #生成类CSV_Analyse()的实例

>>> creat_xls(dealcall.result_list(file))

导入csv文件：

>>> import csv

>>> file =r'd:/4.csv'

>>> reader =csv.reader(open(file,"rd"))

>>> for line in reader:

print line

导入csv文件（除去第一行）：

>>> import csv

>>> file = open(r'd:/4.csv')

>>> file.readline() #读掉第一行，下次引用file的时候将从第二行开始

>>> reader = csv.reader(file)

>>> for c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12 in reader:

print c12

导出csv文件：

import csv

writer = csv.writer(file('your.csv', 'wb'))

writer.writerow(['Column1', 'Column2', 'Column3'])

lines = [range(3) for i in range(5)]

for line in lines:

writer.writerow(line)