The async result object is null or of an unexpected type.异步结果对象为空或属于意外类型.Channel sink does not exist. Failed to dispatch async call.信道接收不存在. 未能调度异步调用.Operation cannot be performed while async operation is pending.不能在异步操作...

adj.异步的...

async的音标：async的英式发音音标为：[ə'zɪŋk]async的美式发音音标为：[ə'zɪŋk]...