我正在尝试将一些 VB.NET 代码转换为 C#,并发现了这个有趣的东西.添加两个字符会在 VB.NET 和 C# 中返回不同的结果.
I am trying to covert some VB.NET code to C# and found this interesting thing. Adding two chars returns different results in VB.NET and C#.
VB.NET - 返回字符串
Chr(1) & Chr(2) = " "
C# - 返回整数
(char)(1) + char(2) = 3
如何在 C# 中添加(连接)两个字符?
How can i add(concatenate) two chars in C#?
在 C# 中 char
是 16 位数字类型,所以 +
表示加法,而不是串联.因此,当您添加 a
和 b
时,您会得到 a+b
.此外,此添加的结果是一个 int
(查看快速演示).
In C# char
is a 16-bit numeric type, so +
means addition, not concatenation. Therefore, when you add a
and b
you get a+b
. Moreover, the result of this addition is an int
(see a quick demo).
如果添加两个字符"是指连接",则在应用运算符 +
之前将它们转换为字符串是一种选择.另一种选择是使用 string.Format
,如下所示:
If by "adding two characters" you mean "concatenation", converting them to a strings before applying operator +
would be one option. Another option would be using string.Format
, like this:
string res = string.Format("{0}{1}", charA, charB);
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