/// 当更改实际销售方时，是否清空下面的字段
- (BOOL)shouldCleanInfosWithNewActualSeller:(NSString *)actualSellerId {
    BOOL _should = NO;
    if (![self.contractPayInfoModel.actualSellerId isEqualToString:actualSellerId] &&
        [self.contractPayInfoModel.payModeCode isEqualToString:kFBGenrateContractPayModeToActualTrading])
    {//当付款模式==付款给实际交易方，且改变了实际交易方时
        _should = YES;
    }
    
    return _should;
} help me refactor code