python向已存在的excel中新增表,不覆盖原数据的实例

import xlwtimport xlrdfrom xlutils.copy import copy#打开需要操作的excel表wb=xlrd.open_workbook(path)#复制原有表newb=copy(wb)#新增sheet,参数是该sheet的名字，可自定义wbsheet=newb.add_sheet(dl+'-'+dn)#向新sheet中写入数据。本代码中的d是某个dataframewbsheet.write(0,0,'date')wbsheet.write(0,1,'visited')wbsheet.write(0,2,'success')for i in range(d.shape[0]):  wbsheet.write(i + 1, 0, d.iloc[i, 0])  for j in range(1,d.shape[1]):    wbsheet.write(i+1,j,int(d.iloc[i,j]))#获取原有excel表中sheet名为‘summary'的sheetsumsheet=newb.get_sheet('summary')#k表示该sheet的最后一行k=len(sumsheet.rows)#想原有sheet后面新增数据sumsheet.write(k,0,dl+'-'+dn)sumsheet.write(k,1,int(sum(d['visited'])))sumsheet.write(k,2,int(sum(d['success'])))#保存为原有的excel表路径newb.save(path)