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Question

我尝试将JavaCV与Kotlin一起使用，但是该代码有问题

import org.bytedeco.javacv.OpenCVFrameGrabber
import org.bytedeco.javacv.CanvasFrame
import org.bytedeco.javacv.Frame

class Vision {

    var grabber: OpenCVFrameGrabber = OpenCVFrameGrabber(0)
    grabber.start()

    var frame: Frame = grabber.grab()

    var canvasFrame: CanvasFrame = CanvasFrame("Test Title")
    canvasFrame.setCanvasSize( frame.imageWidth, frame.imageHeight )

    while (canvasFrame.isVisible() && (frame = grabber.grab()) != null) = this.canvasFrame.showImage(frame)

}

带有 canvasFrame的 grabber.start（）字符串。显示错误“期望成员声明”

你能帮我吗？