小编Pan*_*nat的帖子

我发现了一个没有调用finally块的情况.

要点:

using System;
using System.Collections.Generic;
using System.Threading;
using System.ComponentModel;

    class MainClass{
        static IEnumerable<int> SomeYieldingMethod(){
            try{
                yield return 1;
                yield return 2;
                yield return 3;
            }finally{
                Console.WriteLine("Finally block!");
            }
        }

        static void Main(){
            Example(7);
            Example(2);
            Example(3);
            Example(4);
        }

        static void Example(int iterations){
            Console.WriteLine("\n Example with {0} iterations.", iterations);
            var e = SomeYieldingMethod().GetEnumerator();
            for (int i = 0; i< iterations; ++i) {
                Console.WriteLine(e.Current);
                e.MoveNext();
            }
        }
    }

结果如下:

Example with 7 iterations.
0
1
2
3
Finally block!
3
3
3 …