C#中根据变量获取变量名字符串

1. /// <summary>
2.         /// 获取当前变量的变量名 字符串
3.         /// 调用：GetVarName(p=>test.str1); 返回 "str1"
4.         /// </summary>
5.         /// <param name="exp"></param>
6.         /// <returns></returns>
7.         public
   static
   string GetVarName(System.Linq.Expressions.Expression<Func<string, string>> exp)
8.         {
9.            return ((System.Linq.Expressions.MemberExpression)exp.Body).Member.Name;
10.         }