4.1.1RDD创建 (1)从本地文件系统中加载数据创建RDD >>>lines= Sc textFile ("file: ///usr/local/spark/mycode/rdd/word. txt >>> lines. foreach (print) Hadoop is good Spark is fast Spark is better word. txt REDline Hadoop is good " Hadoop is good Spark is fast sctextFile ("Spark is fast" Spark is better Spark is better" 表示一个RDD元素 图从文件中加载数据生成RDD Spark编程基础》 厦门大学计算机科学系 林子雨 ziyulin@xmu.edu.cn《Spark编程基础》 厦门大学计算机科学系 林子雨 ziyulin@xmu.edu.cn 4.1.1 RDD创建 >>> lines = sc.textFile("file:///usr/local/spark/mycode/rdd/word.txt") >>> lines.foreach(print) Hadoop is good Spark is fast Spark is better word.txt RDD(lines) sc.textFile() Hadoop is good Spark is fast Spark is better "Hadoop is good" "Spark is fast" "Spark is better" 表示一个RDD元素 图 从文件中加载数据生成RDD （1）从本地文件系统中加载数据创建RDD