candance与门版图代码匹配

代码说明：

.global VDD GND.subckt and A B OUTM1 D A VDD VDD PMOS W=7u  L=0.7uM2 D B VDD VDD PMOS W=7u  L=0.7uM3 D A C GND  NMOS W=4.2u  L=0.7uM4 C B GND GND NMOS W=4.2u  L=0.7uM5 OUT D VDD VDD PMOS W=10u  L=0.6uM6 OUT D GND GND  NMOS W=4.9u  L=0.6u .ends andX1 A B OUT andVDD VDD GND 5Va A GND PULSE(0 5 0n 0 5n 50n 100n)Vb B GND PULSE(5 0 0n 0 5n 100n 300n).OPTIONS POST.tran 1n 600n.end