python使用xlrd 操作Excel读写

import xlrd
　　
data =xlrd.open_workbook(‘test2.xls‘)
table = data.sheets()[0]
print table.nrows
print table.name

for row_index in range(table.nrows):
for col_index in range(table.ncols):
print table.cell(row_index,col_index).value  # 遍历所有的cell的值

# -*- coding: utf-8 -*- 
import  xdrlib ,sys
import xlrd
def open_excel(file= ‘file.xls‘):
    try:
        data = xlrd.open_workbook(file)
        return data
    except Exception,e:
        print str(e)
#根据索引获取Excel表格中的数据   参数:file：Excel文件路径     colnameindex：表头列名所在行的所以  ，by_index：表的索引
def excel_table_byindex(file= ‘file.xls‘,colnameindex=0,by_index=0):
    data = open_excel(file)
    table = data.sheets()[by_index]
    nrows = table.nrows #行数
    ncols = table.ncols #列数
    colnames =  table.row_values(colnameindex) #某一行数据 
    list =[]
    for rownum in range(1,nrows):

         row = table.row_values(rownum)
         if row:
             app = {}
             for i in range(len(colnames)):
                app[colnames[i]] = row[i] 
             list.append(app)
    return list

#根据名称获取Excel表格中的数据   参数:file：Excel文件路径     colnameindex：表头列名所在行的所以  ，by_name：Sheet1名称
def excel_table_byname(file= ‘file.xls‘,colnameindex=0,by_name=u‘Sheet1‘):
    data = open_excel(file)
    table = data.sheet_by_name(by_name)
    nrows = table.nrows #行数 
    colnames =  table.row_values(colnameindex) #某一行数据 
    list =[]
    for rownum in range(1,nrows):
         row = table.row_values(rownum)
         if row:
             app = {}
             for i in range(len(colnames)):
                app[colnames[i]] = row[i]
             list.append(app)
    return list

def main():
   tables = excel_table_byindex()
   for row in tables:
       print row

   tables = excel_table_byname()
   for row in tables:
       print row

if __name__=="__main__":
    main()