python实现多对多映射
import pandas as pdimport numpy as npimport osimport xlsxwriterimport itertoolsfilepath = "F:\\python代码\\多对多映射\\" # 读取源文件路径mdturn = pd.read_excel(filepath + r"mdturn.xlsx")phid = pd.read_excel(filepath + r"phid.xlsx")p