Golang determines whether a character is a letter

go languageYou can use the IsLetter method of the unicode package to determine whether a character is a letter.

func IsLetter(r rune) bool

IsLetter Reports whether the rune is a letter (category L).

// IsLetter 判断 r 是否为一个字母字符 (类别 L)
// 汉字也是一个字母字符
func IsLetter(r rune) bool
func main() {
s := "Hello\n\t世界！"
for _, r := range s {
fmt.Printf("%c = %v\n", r, unicode.IsLetter(r))
} // Hello世界 = true
}

For more golang knowledge, please pay attention to the golang tutorial column.

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