scala 将字符转换为字符串
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时间:2020-10-22 05:05:21 来源:igfitidea点击:
Convert Char into a String
提问by Aslan986
Given s : Stringhow can I cast the result of
鉴于s : String我如何才能投射结果
s.first()
into a String?
成String?
采纳答案by Ryan
String doesn't have a .first()function. Do you mean .head?
字符串没有.first()函数。你的意思是.head?
Using headand returning a String is as simple as:
使用head和返回 String 非常简单:
s.head.toString
回答by Eastsun
You can use the method takeas followed:
您可以使用以下方法take:
scala> val s = "abcdef"
s: String = abcdef
scala> val first = s.take(1)
first: String = a
scala>
回答by Ignacio Alorre
Another option:
另外一个选择:
val s : String = "hello"
val first : String = s(0)+""

