个回答

• 美丽的亦航

  2017-03-21 17:43:56

  学习到了，O(∩_∩)O谢谢

  0

• DEXXR

  2016-04-17 17:59:47

  let strValue1 = "床前明月光，疑是地上霜"

  for c in strValue1.characters

  {

      print(c)

  }

  print("字数是:\(strValue1.characters.count)")

  
  

  0

• DEXXR

  2016-04-17 17:51:10

  可是我发现：

  let strValue1 = "床前明月光，疑是地上霜"

  for c in strValue1.characters

  {

      print(c)

  }

  
  

  这样也能输出！

  0

• callmezou

  2016-01-29 14:01:39

  str.characters.count

  
  

  0

• 崖址山

  2016-01-19 08:53:10

  str.characters.count

  
  

  0

• 西风322

  2015-12-31 02:37:47

  改了好多次。。希望早点稳定下来啊  

  0

• 括号扯蛋侠

  2015-11-16 16:32:09

  var str = "Hello, playground"

  str.characters.count

  for c in str.characters{

      print(c)
  

  }

  
  

  1

• fc棒棒哒

  2015-09-16 13:57:29

  countElements has been renamed to count
  

  0

• 赶猪的人

  2015-07-03 14:17:59

  到哪里去看更新的？
  

  0

• Loveway

  2015-07-01 17:04:43

   是的，改了

  0

• DayBreak

  2015-05-20 18:43:22

  same   count(s1)

  0