openpyxl复制sheet页到新的工作簿

import openpyxl
wb = openpyxl.load_workbook('test_book.xlsx')
#获取sheet：
ws = wb.get_sheet_by_name('sheet1')   #通过表名获取
#创建一个新工作簿
wb_new = openpyxl.Workbook()
ws_new = wb_new.active
for i in range(1,ws.max_row):
    for j in range(1,ws.max_column):
        ws_new.cell(row=i, column=j).value = list(ws.rows)[i][j].value
wb_new.save('test_book_new.xlsx')