TCGCustomTransChannel Class Reference Inherits from NSObject Declared in TCGCustomTransChannel.hTCGCustomTransChannel.m – sendData: 向云端程序发送二进制数据 - (int)sendData:(NSData *)data Return Value 发送状态。0发送成功，-1 数据超过长度， -2 当前通道未连接成功 Discussion 向云端程序发送二进制数据一次最多能发送1200bytes的数据 Declared In TCGCustomTransChannel.h – close 关闭通道 - (void)close Discussion 关闭通道 Declared In TCGCustomTransChannel.h