Cocos Creator spine动态换纹理，我这边使用了一个图集，替换后，图集全部显示出来了，怎么试用图集中的某个图片替换?我写了这么多，发帖还爆Title 无效；请描述得更详尽些
下面是spine的纹理替换代码，下面截图是贪吃蛇，中间是替换的纹理，
var skeleton = this.spine.getComponent(sp.Skeleton)
var slot = skeleton.findSlot('swk3')
var atlas = window.facade.snakeImage
var frame = atlas.getSpriteFrame('body1')
var attachment = slot.getAttachment()
var texture = frame.getTexture()
var tex = new sp.SkeletonTexture({ width: texture.getPixelWidth(), height: texture.getPixelHeight() })
tex.setRealTexture(texture)
attachment.region.texture = tex
slot.setAttachment(attachment)
大佬 ，这句报错了