※ 引述《biostat02 (王子)》之銘言： : 目前在做iOS藍芽的資料傳輸 : 可是一直搞不清楚這兩者的差別 : - writeValue:forCharacteristic:type: : - updateValue:forCharacteristic:onSubscribedCentrals: : 我個人的解讀是兩者的傳輸方向是相反的 : 想跟各位確定一下,謝謝 hi, 是的， I hope you have already figured out the answer to this question. - updateValue:forCharacteristic:onSubscribedCentrals: this is Peripheral Role Tasks. When you call this method to send updated characteristic values to s ubscribed centrals, you can specify which centrals you want to update in the last parameter. 從Peripheral 送到Central 。 writeValue:forCharacteristic:type: method this is for Central Role Tasks. whento write the value of a characteristic, you spec ify what type of write you want to perform. then callback function peripheral:didWriteValueForCharacteristic:error: you can reference Core Bluetooth Programming Guide from apple --

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