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"discountType": "%",，更多细节参见safew官方版本下载
All of the examples demonstrating ordered dithering so far have been produced using a specific type of threshold matrix commonly known as a Bayer matrix. In theory however any matrix could be used and a number of alternatives are available depending on your qualitative preference. Matrices also don’t have to be square or even rectangular; polyomino-based dithering matrices have been explored as well[6].，详情可参考Line官方版本下载
Мощный удар Израиля по Ирану попал на видео09:41
* @return {string} 移除k位后最小的数字（字符串形式）