C#命名参数可以使您的代码更清晰
示例
考虑这个简单的类：
class SmsUtil
{
public bool SendMessage(string from, string to, string message, int retryCount, object attachment)
{
//一些代码
}
}在C＃3.0之前是：
var result = SmsUtil.SendMessage("Mehran", "Maryam", "你好！", 12, null);您可以使用命名参数使此方法调用更加清晰：
var result = SmsUtil.SendMessage(
from: "Mehran",
to: "Maryam",
message "你好！",
retryCount: 12,
attachment: null);