LINQ如何对数组中的数据进行Sum操作呢？ 谢谢

[javamy038]

如我有订单列表
[
{"订单号":"001","运费":15,"收货人":"ab1","货品列表":[{"货品":"A","金额":100},{"货品":"B","金额":200}]},
{"订单号":"002","运费":18,"收货人":"ab2","货品列表":[{"货品":"C","金额":180},{"货品":"D","金额":250}]}
]

现在我能用linq
orders.Sum(l=>l.运费) 可以得到:33

但现在我要Orders.Sum(全部货品的总额要怎么写？)

谢谢

[骑着蜗牛去爬山]

try int sum=Orders.Sum(t=>t.货品列表.Sum(tt=>tt.金额));