Range creates a lazy sequence that generates all the Numbers in the given interval; take asks the sequence 10 times for the next element.
range创建了一个lazysequence，这个lazy sequence会预生成好指定范围内的10个数。然后，take会请求10次sequence来获取生成的数。
Range creates a lazy sequence that generates all the Numbers in the given interval; take asks the sequence 10 times for the next element.
range创建了一个lazysequence，这个lazy sequence会预生成好指定范围内的10个数。然后，take会请求10次sequence来获取生成的数。
应用推荐