通过实例学习Python Excel操作

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这篇文章主要介绍了通过实例学习Python Excel操作,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

1.python 读取Excel

# -*- coding: utf-8 -*-
import xlrd
import os,sys

reload(sys)
sys.setdefaultencoding("utf8")

filename = 'text.xlsx'
filename = filename.decode('utf-8')
book = xlrd.open_workbook(filename)
sheet1 = book.sheets()[0]
nrows = sheet1.nrows
print u'表格总行数 ',nrows
ncols = sheet1.ncols
print u'表格总列数 ',ncols

##查询表头
excelhead = []
for i in range(ncols):
 excel_head_values = sheet1.col_values(i)
 excelhead.append(excel_head_values[0])

##查询行的值
excelhang = []
for i in range(nrows)[1:]:
 row_values = sheet1.row_values(i)
 print 'User:' + row_values[2] + ' Filename:' + row_values[0] + ' Tablename:' + row_values[1]

text.xlsx内容如下：

运行结果：

表格总行数 4
表格总列数 3
User:edw Filename:sh002_zyb_tx_chk_h0200.py Tablename:SH002_ZYB_TX_CHK_H0200
User:etl Filename:sh002_a_h0200.py Tablename:SH002_A_H0200
User:app Filename:sh002_b_h0200.py Tablename:SH002_B_H0200

2.python 写入Excel

# -*- coding: utf-8 -*-
import xlwt
import pymysql

def sql_connect(sql):
  conn = pymysql.connect(host='192.168.3.xx',port=3306, user='root', password='123456',db='hive',charset='utf8')
  cur = conn.cursor()
  cur.execute(sql)
  data = cur.fetchall()
  cur.close()
  conn.close()
  return data


def write_excel(filename, data):
  book = xlwt.Workbook()      #创建excel对象
  sheet = book.add_sheet('PARTITIONS') #添加一个表Sheet
  c = 0 #保存当前列
  for d in data: #取出data中的每一个元组存到表格的每一行
    for index in range(len(d)):  #将每一个元组中的每一个单元存到每一列
      sheet.write(c,index,d[index])
    c += 1
  book.save(filename) #保存excel

sql = 'select * from PARTITIONS limit 100'
res = sql_connect(sql)
write_excel('partitions.xls', res)

运行结果：

3.python Excel写入表内

# -*- coding: utf-8 -*-
import xlwt
import xlrd
import pymysql

#从excel读取数据写入mysql
def excel_to_mysql(filename):
  conn = pymysql.connect(host='192.168.3.xx',port=3306, user='root', password='123456',db='hive',charset='utf8')
  cur = conn.cursor()   #连接数据库
  book = xlrd.open_workbook(filename)
  sheet = book.sheet_by_name('Sheet1')
  rows = sheet.nrows   #获取行数
  for r in range(1,rows): #将标题之外的其他行写入数据库
    r_values = sheet.row_values(r)
    sql = 'insert into user_zw values(%s,%s,%s)' #有几个字段需要几个%s
    data = cur.execute(sql,r_values) #将每一行插入sql
  conn.commit()      #插入所有数据后提交
  cur.close()
  conn.close()
excel_to_mysql('user_zw.xls')

user_zw.xls的内容：