python 读取excel方法（最大行数：1048576）

1     inwb=openpyxl.load_workbook(Path_generate)
2     Sheetnames=inwb.get_sheet_names()
3     ws=inwb.get_sheet_by_name(Sheetnames[0])

1     rows=ws.max_row
2     cols=ws.max_column

1 print(ws.cell(1,1).value)

1 outwb=openpyxl.Workbook()
2 outws=outwb.create_sheet(index=0)

1 outws.cell(row, col).value = row * 2  # 写文件

1 saveExcel = "D:\\work\\Excel_txtProcesss\\test.xlsx"
2 outwb.save(saveExcel)  # 一定要记得保存

 1  def readExel(self):
 2         filename = r‘D:\work\Excel_txtProcesss\new-微博-合并\58.xlsx‘
 3         inwb = openpyxl.load_workbook(filename)  # 读文件
 4 
 5         sheetnames = inwb.get_sheet_names()  # 获取读文件中所有的sheet，通过名字的方式
 6         ws = inwb.get_sheet_by_name(sheetnames[0])  # 获取第一个sheet内容
 7 
 8         # 获取sheet的最大行数和列数
 9         rows = ws.max_row
10         cols = ws.max_column
11         for r in range(1, rows):
12             for c in range(1, cols):
13                 print(ws.cell(r, c).value)
14             if r == 10:
15                 break

1     def writeExcel(self):
2         outwb = openpyxl.Workbook()  # 打开一个将写的文件
3         outws = outwb.create_sheet(index=0)  # 在将写的文件创建sheet
4         for row in range(1, 70000):
5             for col in range(1, 4):
6                 outws.cell(row, col).value = row * 2  # 写文件
7             print(row)
8         saveExcel = "D:\\work\\Excel_txtProcesss\\test.xlsx"
9         outwb.save(saveExcel)  # 一定要记得保存