c# - 如何将静态数组的元素传递给非静态方法？

Question

我有一个静态数组，我需要将它的任意元素传递给一个非静态方法。

我该怎么做？

public class MyClass
{
    public static int[] staticArray = { 3, 11, 43, 683, 2731 };

    public void SomeMethod(int value)
    {
        //...stuff...
    }

    public static void staticMethod()
    {
         SomeMethod(staticArray[2]);    //error here
    }
}

当我尝试类似的操作时，出现错误 An object reference is required for the non-static field, method, or property。

Answer 1

您的代码没有问题，但是当您尝试调用 instance 方法，或者访问类实例以外的非静态字段/属性，比如从静态方法。例如:

class MyClass
{
    private int imNotStatic;

    public static void Bar()
    {
        // This will give you your 'An object reference is required` compile 
        // error, since you are trying to call the instance method SomeMethod
        // from a static method, as there is no 'this' to call SomeMethod on.
        SomeMethod(5);

        // This will also give you that error, as you are calling SomeMethod as
        // if it were a static method.
        MyClass.SomeMethod(42);

        // Again, same error, there is no 'this' to read imNotStatic from.
        imNotStatic = -1;
    }

    public void SomeMethod(int x)
    {
        // Stuff
    }
}

确保您没有执行上述任一操作。您确定要从构造函数调用 SomeMethod 吗？