for循环传入字符串的时候，提示 value foreach is not a member of String
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wengcheng_k
2017-07-27
在IDEA中运行就出现下面的错误： def main(args: Array[String]) { var j: Long = 1 for (i <- "Hello"){ j = j * i.toLong } println(j) println("-----------------------------") } Error:(27, 15) value foreach is not a member of String for (i <- "Hello"){ 在解释器中运行是可以的。 scala> var j: Long = 1 j: Long = 1 scala> for (i <- "Hello") j = j * i.toLong scala> println(j) 9415087488 scala> |
