关闭小游戏，再次点开，出现黑屏

Question

const canvas = wx.createCanvas();
const ctx = canvas.getContext("2d");
const image = wx.createImage();

export class Main {
    constructor() {
        image.onload = () => {
            ctx.drawImage(
                image,
                0,
                0,
                image.width,
                image.height,
                0,
                0,
                canvas.width,
                canvas.height,
            );
        };
        image.src = "res/bg.png";
    }
}

Answer 1

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