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並前往https://doc.qt.io/qt-5/qml-qtquick-context2d.html

Context2D QML Type | Qt Quick 5.15.8 - Qt Documentation

... object beginPath(); object bezierCurveTo(real cp1x, real cp1y, real cp2x, real cp2y, real x, real y); object clearRect(real x, real y, real w, real h) ...

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查詢 「clearRect」的人也找了：

  1. clearRect
    2.
  2. strokeText
    3.
  3. Canvas clear
    4.
  4. clearrect doesn't work
    5.
  5. createRadialGradient
    6.
  6. measureText
    7.
  7. fillRect
    8.
  8. closePath
    9.