网站介绍:文章浏览阅读93次。九.数组操作 val arr = Array(Array(1, 2, 5, 4), Array(3, 6, 7, 8), Array(9, 10)) //flatten只能一次压一层 val flatten = arr.flatten println(flatten.toBuffer) val lines = Array("spark hadoop flink spark", "spark spark flink", "spark flink") val lin_"已知tuple1 =(\"hadoop\", \"spark\",\"flink\",\"storm\"),那么执行语句 len size ="
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