Open t4Wang opened 6 years ago
可以维护一个变量size,在插入数据时增加1
@ChengOrangeJu 但是这样会有多线程问题,比如size增加了1但是方法执行失败了,或者几个人同时请求等等
并发处理是在调用智能合约之前该做的事儿
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比如这样定义
怎么获取map的大小?