| CanvasContext.addColorStop | Add a circular gradient point |
| CanvasContext.arc | Draw arc |
| CanvasContext.beginPath | Start to create a path, must use fill or stroke to fill or stroke the path |
| CanvasContext.bezierCurveTo | Create cubic Bezier curve path |
| CanvasContext.clearRect | Clear the content in the rect |
| CanvasContext.clip | Set the created path as clipped path |
| CanvasContext.closePath | Close a path |
| CanvasContext.createCircularGradient | Create a circular gradient point, the start point is the center of the circle and the end point is the ring |
| CanvasContext.createLinearGradient | Create a linear gradient |
| CanvasContext.draw | Draw the description in the context such as path, style to the canvas |
| CanvasContext.drawImage | Draw the image, and the image keeps the original size information |
| CanvasContext.fill | Fill the current path |
| CanvasContext.fillRect | Fill the rect |
| CanvasContext.fillText | Fill the text in the canvas |
| CanvasContext.getImageData | Get the pixel data of the implicit area of the canvas |
| CanvasContext.lineTo | Add a new point, and line the last specified point to the new point |
| CanvasContext.measureText | Mesure the size of the text, current only the witch is returned, and it is a synchronous interface |
| CanvasContext.moveTo | Move the path to the specified point, the line will not be created |
| CanvasContext.putImageData | Draw the pixel data into the canvas |
| CanvasContext.quadraticCurveTo | Create a quadratic cubic Bezier curve path |
| CanvasContext.rect | Draw a rect |
| CanvasContext.restore | Restore the saved context |
| CanvasContext.rotate | Set the original point as the center, rotate the coordinate clockwise. The angle will be added if rotate isinvoked multiple times |
| CanvasContext.save | Save the context of the canvas |
| CanvasContext.scale | After the scale is invoked, the horizontal and vertical coordinate of the path created subsequently will be scaled. The scale will be multiplied if scale is invoked multiple times |
| CanvasContext.setFillStyle | Set the color of the fill |
| CanvasContext.setFontSize | Set the font size |
| CanvasContext.setGlobalAlpha | Set the alpha of global brush |
| CanvasContext.setLineCap | Set the end ponit style of a line |
| CanvasContext.setLineDash | Set the style of dash line |
| CanvasContext.setLineJoin | Set the style of joint of lines |
| CanvasContext.setLineWidth | Set the width of line |
| CanvasContext.setMiterLimit | Set the max miter length |
| CanvasContext.setShadow | Set the style of shadow |
| CanvasContext.setStrokeStyle | Set the style of stroke |
| CanvasContext.setTextAlign | The text align property used to describe text in 2D Canvas API |
| CanvasContext.setTextBaseline | The baseline of current text used to describe text in 2D Canvas API |
| CanvasContext.setTransform | Reset the transform and invoke the transform by unit matrix, the transform is described by the variable of the method |
| CanvasContext.stroke | Draw the stroke, by default is black |
| CanvasContext.strokeRect | Draw a none-filled rect |
| CanvasContext.toDataURL | Get the data URL of specified area of canvas |
| CanvasContext.toTempFilePath | Export the canvas to an image and return the file path |
| CanvasContext.transform | A method in which a matrix is superimposed multiple times on the current transformation, and the matrix is described by the parameters of the method. You can scale, rotate, move, and tilt the context |
| CanvasContext.translate | Transfor the original point of the coordinate. The default orginal point is the upper-left corner |
