也就是说，您可以将类似Java哈希表这样的复杂类型作为一个参数进行传递。而在目前的RPC系统中，您只能依靠客户机将此类对象分解成基本数据类型，-other words, you can hash table similar to Java such a complex type as a parameter transmission. And the current RPC system, you can only rely on the client will be decomposed into objects such basic data types,