请大神们指点小弟这种写反愚蠢不愚蠢，谢谢！
mrp_final['LT_Demand']=list(map(lambda x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15,x16:
sum([x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15][:x16]),
mrp_final.iloc[:,16],
mrp_final.iloc[:,17],
mrp_final.iloc[:,18],
mrp_final.iloc[:,19],
mrp_final.iloc[:,20],
mrp_final.iloc[:,21],
mrp_final.iloc[:,22],
mrp_final.iloc[:,23],
mrp_final.iloc[:,24],
mrp_final.iloc[:,25],
mrp_final.iloc[:,26],
mrp_final.iloc[:,27],
mrp_final.iloc[:,28],
mrp_final.iloc[:,29],
mrp_final.iloc[:,30],
mrp_final.iloc[:,14])) |
