可选参数由[optional]C#执行，检查参数是否已通过

我有这样的类构造函数：

public Script(string scriptName, [Optional] ICollection<Tuple<string, bool>> internalFunctions, [Optional] long randomIdentifier) { }

或

或

打电话

---

谢谢。

如果没有显式传递值，那么这些参数将具有默认值，您必须自己测试这些值：

public Script(string scriptName, [Optional] ICollection<Tuple<string, bool>> internalFunctions, [Optional] long randomIdentifier)
{
    if (internalFunctions != null)
    {
        // do something that needs internalFunctions to have a value
    }

    if (randomIdentifier != 0)
    {
        // do something that needs randomIdentifier to have a valid value
    }
    else
    {
        // either a value wasn't passed, or the value 0 was passed...
        //   you can't be sure, so you might want to make this nullable
    }
}

公共脚本（字符串scriptName，[可选]ICollection internalFunctions，[可选]长随机标识符）
{
if（内部函数！=null）
{
//做一些需要内部函数才能有价值的事情
}
如果（随机标识符！=0）
{
//执行需要随机标识符才能具有有效值的操作
}
其他的
{
//未传递值，或者传递了值0。。。
//您不能确定，因此您可能希望将此设置为可空
}
}

哦，那么，它是默认使用的（长）？那么，通过Nullable实现它的最佳方法是什么？

new Script("test1", null)

new Script("test1", null, 1)

public Script(string scriptName, [Optional] ICollection<Tuple<string, bool>> internalFunctions, [Optional] long randomIdentifier)
{
    if (internalFunctions != null)
    {
        // do something that needs internalFunctions to have a value
    }

    if (randomIdentifier != 0)
    {
        // do something that needs randomIdentifier to have a valid value
    }
    else
    {
        // either a value wasn't passed, or the value 0 was passed...
        //   you can't be sure, so you might want to make this nullable
    }
}