我有两个对象列表.列表A和列表B.我需要创建列表C,将列表A和列表B组合成对.例如：
List A object a1 object a2 object a3 List B object b1 object b2 object b3 List C (creates pairs) object c1 (object a1,object b1) object c2 (object a2,object b2) object c3 (object a3,object b3)
解决方法
这样做：
public static IEnumerable<Tuple<T,U>> CombineWith<T,U>(this IEnumerable<T> first,IEnumerable<U> second)
{
using (var firstEnumerator = first.GetEnumerator())
using (var secondEnumerator = second.GetEnumerator())
{
bool hasFirst = true;
bool hasSecond = true;
while (
// Only call MoveNext if it didn't fail last time.
(hasFirst && (hasFirst = firstEnumerator.MoveNext()))
| // WARNING: Do NOT change to ||.
(hasSecond && (hasSecond = secondEnumerator.MoveNext()))
)
{
yield return Tuple.Create(
hasFirst ? firstEnumerator.Current : default(T),hasSecond ? secondEnumerator.Current : default(U)
);
}
}
}
编辑：我非常喜欢Paul’s的答案.
