g 对象001
v 1.26999998 -0.317499995 -1.26999998E-06
v -1.26999998 -0.317499995 -1.26999998E-06
v -1.26999998 0.317499995 -1.26999998E-06
v 1.26999998 0.317499995 -1.26999998E-06
vt 1 0
vt 0 0
vt 0 0.25
vt 1 0.25
vn -0 0 1
vn -0 0 1
vn -0 0 1
vn -0 0 1
g 对象001_0
f 3/3/3 2/2/2 1/1/1
f 4/4/4 3/3/3 1/1/1