源自：3-4 Scala基础 if与for
result_for 运行报错：An outline is not available
后面这个result_for 运行报错：An outline is not available。此时应该怎么处理？
提问者：qq_夏天hot_0
2018-04-19 10:50
个回答
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- 码农_小戴
- 2018-04-30 11:48:45
val result_for=for { s <- l s1=s.toUpperCase(); if(s1 != "") }yield (s1) def main(args: Array[String]): Unit = { println(result_for) }