b -1;//0
b 0;//1
b b,LR;
b b,LR;
br b,LR;
b1 b,LR,TYPE,4,0.06,0.98,0.999,0.0020,0.60;//1ړx2_Έʒu
b2 b1,LR,TYPE,4,0.04,0.94,0.999,0.0000,0.20;//3dSړx
b3 b2,LR,TYPE,4,0.04,0.92,0.900,0.0000,0.30;//4d͉e5E
b{ b;