swift – 将InputStream读入Data对象

extension Data {
    init(reading input: InputStream) {
        self.init()
        input.open()

        let bufferSize = 1024
        let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSizE)
        while input.hasBytesAvailable {
            let read = input.read(buffer,maxLength: bufferSizE)
            self.append(buffer,count: read)
        }
        buffer.deallocate(capacity: bufferSizE)

        input.close()
    }
}

查找测试here的完整代码.