One of the most useful data structures in computer science is the hash table. Many hash table implementations exist with varying properties, but in general they offer fast lookups, adds, and deletes. Go provides a built-in map type that implements a hash table.哈希表是计算机中最有用的数据结构之一...

我们把Java源代码编译后的jar包或war包看成是工程师生产出来的产品，操作系统是一个平台，JVM就是中间商，那程序的整体性能也要受到中间商JVM的因素影响了。