從通訊錄復(fù)制手機(jī)號(hào)粘貼到輸入框中,最后拿到的的字符串會(huì)多出奇怪的unicode碼\U202d
(屬于不顯示的unicode碼所以可以看到界面上顯示時(shí)正常的但位數(shù)就不對(duì))

去除該unicode碼

  str = [str stringByReplacingOccurrencesOfString:@"\\p{Cf}" withString:@"" options:NSRegularExpressionSearch range:NSMakeRange(0, str.length)];