两种方式,我觉得是一样的效果,请看: var charFilter1 = function(str) { var pattern = new RegExp("[`~!@#$^&*()=|{}':;',\\[\\].<>/?~!@#¥……&*()——|{}[]‘::”“'.,.?]", 'g'); var rs = ""; for (var i = 0; i < str.length; i++) { rs = rs+str.subst
1.启动 启动HDFS 启动spark的local模式./spark-shell 2.知识点 textFile: def textFile( path: String, minPartitions: Int = defaultMinPartitions): RDD[String] Filter: Return a new RDD containing only the elements that satisfy a predicate. def filter(f: T => Boolean):