如何在Swift中获取由整数表示的Unicode代码点? [英] How can I get the Unicode codepoint represented by an integer in Swift?
问题描述
所以我知道如何将String转换为utf8格式
So I know how to convert String to utf8 format like this
for character in strings.utf8 {
// for example A will converted to 65
var utf8Value = character
}
我已经阅读了指南,但是找不到如何将整数表示的Unicode代码点转换为String.例如:将65转换为A.我已经尝试使用"\ u" + utf8Value,但仍然失败.
I already read the guide but can't find how to convert Unicode code point that represented by integer to String. For example: converting 65 to A. I already tried to use the "\u"+utf8Value but it still failed.
有什么办法吗?
推荐答案
如果查看Character
的枚举定义,则可以看到以下初始化程序:
If you look at the enum definition for Character
you can see the following initializer:
init(_ scalar: UnicodeScalar)
如果我们再看一下UnicodeScalar结构,我们会看到以下初始化程序:
If we then look at the struct UnicodeScalar, we see this initializer:
init(_ v: UInt32)
我们可以将它们放在一起,得到一个完整的角色
We can put them together, and we get a whole character
Character(UnicodeScalar(65))
如果我们希望将其放在字符串中,则它只是另一个初始化程序...
and if we want it in a string, it's just another initializer away...
1> String(Character(UnicodeScalar(65)))
$R1: String = "A"
或者(尽管我不知道为什么这个可行),你可以做
Or (although I can't figure out why this one works) you can do
String(UnicodeScalar(65))
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