C#/.NET开发问题

In c# why (char)(1) + (char)(2) results in int 3(在 c# 为什么 (char)(1) + (char)(2) 导致 int 3)
Incrementation of char(char 的增量)
What#39;s the deal with char.GetNumericValue?(char.GetNumericValue 是怎么回事?)
quot;Too many characters in character literal errorquot;(“字符文字错误中的字符过多)
How would you get an array of Unicode code points from a .NET String?(如何从 .NET 字符串中获取 Unicode 代码点数组?)
How to find out next character alphabetically?(如何按字母顺序找出下一个字符?)
How to count unique characters in string(如何计算字符串中的唯一字符)
How to get the first five character of a String(如何获取字符串的前五个字符)
How to check if a String contains any letter from a to z?(如何检查字符串是否包含从 a 到 z 的任何字母?)
What is the correct way to compare char ignoring case?(比较 char 忽略大小写的正确方法是什么?)
What is this char? 65279 #39;#39;(这是什么字符?65279 )
Why is there no Char.Empty like String.Empty?(为什么没有像 String.Empty 这样的 Char.Empty?)