swift 随机表情符号

Posted 2021-05-19

// Returns a random Emoji 
extension String{
    func randomEmoji()->String{
        let range = 0x1F601...0x1F64F
        let ascii = range.startIndex + Int(arc4random_uniform(UInt32(range.count)))
        let emoji = String(UnicodeScalar(ascii))
        return emoji
    }
}