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If you run fmt.Println("\u554a"), it shows '啊'.
But how to get unicode-style-string \u554a from a rune '啊' ?
992
A rune is an alias to the int32 data type. It represents a Unicode code point. A Unicode code point or code position is a numerical value that is usually used to represent a Unicode character.
Unicode is a standard encoding system that is used to represent characters from almost all languages. Every Unicode character is encoded using a unique integer code point between 0 and 0x10FFFF . A Unicode string is a sequence of zero or more code points.
When you convert a string to a rune slice, you get a new slice that contains the Unicode code points (runes) of the string. For an invalid UTF-8 sequence, the rune value will be 0xFFFD for each invalid byte.
Unicode is a digital standard for the consistent encoding of the world's writing systems, so that representation of character sets is consistent around the world. The first 256 Unicode characters (0, 255) correspond to the ASCII character set.
package main
import "fmt"
import "strconv"
func main() {
quoted := strconv.QuoteRuneToASCII('啊') // quoted = "'\u554a'"
unquoted := quoted[1:len(quoted)-1] // unquoted = "\u554a"
fmt.Println(unquoted)
}
This outputs:
\u554a
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