1.Lists 中处理合并Key相同的Tuple
CashInfo1 = [{?PAY_TYPE_YUANBAO, NeedYuanBao + OldNeedYuanbao}|lists:keydelete(?PAY_TYPE_YUANBAO, 1, CashInfo)]
项目中自己觉得比较好的Erlang语法
原文：http://www.cnblogs.com/jluzhsai/p/4598146.html
