我有一个对象列表.单个对象条目的一个属性是数量.如何获得金额的总和?
I have a list of objects. One property of the individual object entry is amount. How do I get the sum of amount?
如果我的列表是 double 类型,我可以这样做:
If my list was of type double I may be able to do something like this:
double total = myList.Sum();
但是我想要类似的东西,但是这个语法不正确.
However I want to something similar to this, yet this syntax is incorrect.
double total = myList.amount.Sum();
我应该如何去完成这个?如果可能的话,我希望使用 Sum 函数,而不是循环并计算值.
How should I go about accomplishing this? I would love to use the Sum function if possible instead of looping through and calculating the value.
using System.Linq;
...
double total = myList.Sum(item => item.Amount);
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