做完base64后,发现总是报错image format error
qt base64 url encode
发现:https://developer.baidu.com/forum/topic/show/244140
qt base64 url encode
Qt中需要稍微转换一下

QByteArray toBase64(QString imgPath) {
    QImage image(imgPath);
    QByteArray ba;
    QBuffer buf(&ba);
    image.save(&buf, "png");
    QByteArray hexed = ba.toBase64();
    buf.close();
    return hexed;
}
toBase64(imgPath).toPercentEncoding()

核心是toPercentEncoding
qt base64 url encode

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