指定宽度,高度自适应 名称 处理接口 操作 imageMogr2/thumbnail/100x/blur/1x0/quality/100|imageslim imageMogr2/thumbnail/20x/blur/1x0/quality/100|imageslim imageMogr2/thumbnail/30x/blur/1x0/quality/100|imageslim imageMogr2/thumbnail/40x/blur/1x0/quality/100|imageslim imageMogr2/thumbnail/50x/blur/1x0/quality/100|imageslim imageMogr2/thumbnail/60x/blur/1x0/quality/100|imageslim imageMogr2/thumbnail/70x/blur/1x0/quality/100|imageslim imageMogr2/thumbnail/80x/blur/1x0/quality/100|imageslim imageMogr2/thumbnail/90x/blur/1x0/quality/100|imageslim 以此类推都可用