array and ram

http://blog.sina.com.cn/s/blog_68012d5201014i36.html

http://zhidao.baidu.com/link?url=Gyed-o95k3TFiqkRDY1eHQUoGhk5A4krgSSc_78hsA63OXSdPNYvo2l8_2PAMChR4ehe8yarQxxEEgFNNR-wxK

http://wenku.baidu.com/link?url=jft5jb9QwmT3YAMpsrdQ-I_b0NbW6DJOV179a_GAPFt4sY-YcJJJgIV60SMh8CnePKaSsvw9BdxD_PiTUvRrpQTqKnfysjdPd3h-un0wpS3

原文地址:https://www.cnblogs.com/stevenxiu/p/5761596.html