C# 静态构造函数,静态变量执行顺序

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在同时有静态构造函数,静态成员,构造函数,实例成员的情况下,执行顺序为:
1.执行子类静态成员初始化语句;
2.执行子类静态构造函数;
3.执行子类实例成员初始化语句;
4.执行基类静态成员初始化语句;
5.执行基类静态构造函数;
6.执行基类实例成员初始化语句;
7.执行基类实例构造函数;
8.执行子类实例构造函数。

注:成员赋值初始先从子类再到基类,构造函数初始化先从基类再到子类。

例子:

  public class Print
    {
        public Print(string s)
        {
            Console.WriteLine(s);
        }
    }
    public class Parent
    {
        public static Print obj1 = new Print("6");
        public Print obj2 = new Print("10");
        public static Print obj3 = new Print("7");
        static Parent()
        {
            new Print("9");
        }
        public static Print obj4 = new Print("8");
        public Print obj5 = new Print("11");
        public Parent()
        {
            new Print("12");
        }
    }
    public class Child : Parent
    {
        static Child()
        {
            new Print("3");
        }
        public static Print obj1 = new Print("1");
        public Print obj2 = new Print("4");
        public Child()
        {
            new Print("13");
        }
        public static Print obj3 = new Print("2");
        public Print obj4 = new Print("5");
    }

Child child = new Child();
Child child = new Child();
输出顺序为:1 2 3 4 5 6 7 8 9 10 11 12 13 4 5 10 11 12 13

Child child = new Child();
Parent parent = new Parent();
输出顺序为:1 2 3 4 5 6 7 8 9 10 11 12 13 10 11 12

Parent parent = new Parent();
Child child = new Child();
输出顺序为: 6 7 8 9 10 11 12 12 3 4 5 10 11 12 13

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转载自blog.csdn.net/AK_97_CT/article/details/86744808