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defineMapProperty有办法获取里面存的元素的个数吗 #183
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可以维护一个变量size,在插入数据时增加1 |
可以参考tutorial中的例子:Map数据遍历 |
@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 |
你好,此版本为星云旧版wiki(后期逐步停止维护),欢迎将您的问题提交星云新版wiki,以便于获得及时解答。同时,参与wiki的编辑维护工作还会有奖励哦。新版wiki链接:https://wiki.nebulas.io/en/latest/ |
比如这样定义
怎么获取map的大小?
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