c# - 垃圾收集和对象初始化程序 - Thinbug

垃圾收集和对象初始化程序

时间：2014-09-11 11:56:25

标签： c# garbage-collection

class Program
{
    static void Main(string[] args)
    {
        var test = new Test { Name = "One" };
        var test2 = new Test { Name = "Two" };
        var weak = new WeakReference<TestRef>(new TestRef(test, test2));
        var weak2 = new WeakReference<TestRef>(new TestRef(test) { Test2 = test2 });
        GC.Collect();

        TestRef tref;
        TestRef tref2;
        var @is = weak.TryGetTarget(out tref); //FALSE
        var @is2 = weak2.TryGetTarget(out tref2); //TRUE
    }
}

class Test
{
    public Test()
    { }
    public string Name { get; set; }
}

class TestRef
{
    public TestRef(Test test)
    { Test = test; }

    public TestRef(Test test, Test test2)
    {
        Test = test;
        Test2 = test2;
    }
    public Test Test { get; set; }
    public Test Test2 { get; set; }
}

在此示例中，如果在 GC集合对象从堆中删除之后，