import bpy
# Get object
obj = bpy.context.object
# Export faces as OBJ file
with open('faces.obj', 'w') as f:
for face in obj.data.polygons:
# Write face indices
f.write('f')
for index in face.vertices:
f.write(' %d' % (index + 1))
f.write('\n')
该代码遍历对象中的各个面,并输出包含面的所有顶点的索引列表。索引值+1是因为OBJ格式索引从1开始而不是从0开始。