Question

C# 根据数字值获取相应枚举

public enum Url
{
[Description("http://www.thylx.net")]
个人博客 = 1,
[Description("http://blog.163.com/thylx133@126/")]
网易博客 = 2,
[Description("http://www.8eshare.com/")]
八邑分享 = 3
}

我想通过1,2,3来获取描述值，求各位大神指教
比如获取1

Answer 1

int a=1;
Url u=(Url)a;
var a = typeof(Url).GetField(u.ToString()).GetCustomAttributes(typeof(DescriptionAttribute), false).FirstOrDefault() as DescriptionAttribute;
var d = a.Description;
//d就是你想要的值

Answer 2

File.Delete(Application.StartupPath +@"\beautiful.txt"); 应该是这样,如果不是的话,先输出Application.StartupPath,看得到的是什么,然后做相应