for (int i = 0; i != count; ++i)
{   //如果有多张纹理，既count > 1，理论上最后一张纹理的size使用textureWidth标记的值（一般会小于1024）
    //the problem code lies below，correct code in condition statements should be: count > 1 && i < count -1 ? ...
    int width = count > 1 && i < count ? stardardTextureSize[stardardTextureSize.Length - 1] : textureWidth;
    bakedBoneTexture[i] = new Texture2D(width, width, format, false);
    bakedBoneTexture[i].filterMode = FilterMode.Point;
}