c# - 在 C# 中比较日语字符

Question

我正在检查日文字符串中的空格并将其替换为“_”。这就是我正在做的:

string input1="abc  dfg";
string input2="尾え　れ";
if(input1.Contains(" "))
{
  Console.WriteLine(input1.Replace(" ","_"));
}
Console.WriteLine("------------------");
if(input2.Contains(" "))
{
  Console.WriteLine(input2.Replace(" ","_"));
}

这是这段代码的输出

abc__dfg
------------------

它在简单的英文字符串中用“_”替换了空格，但在日文字符串中却没有。

Answer 1

因为你的 input2 中的 look-like-space 并不是一个真正的 space ，只需检查它的 ascii 码

Console.WriteLine(Convert.ToInt32('　')); // output: 12288
Console.WriteLine(Convert.ToInt32(' ')); // output: 32

string input1 = "abc  dfg";
string input2 = "尾え　れ"; // a space
string input3 = "尾え れ"; // not a space
if (input1.Contains(" "))
{
    Console.WriteLine(input1.Replace(" ", "_"));
}
Console.WriteLine("------------------");
if (input2.Contains("　"))
{
    Console.WriteLine(input2.Replace("　", "_"));
}
Console.WriteLine("------------------");
if (input3.Contains(" "))
{
    Console.WriteLine(input3.Replace(" ", "_"));
}

---

@Ronan Thibaudau的原解释:

Because it's not a space, it's not the same character, copy what you call a "space" from the input 2 string and paste it in the input2.replace method and it will work, it's just not the same character as the space you typed (even when i try to select it here on stackoverflow it's twice as large as the spaces in your input1 so it can't be the same character)