实验一 ......\MyExpSin.m ......\MyImpulse.m ......\MySin.m ......\MySin1.m ......\MySquare.m ......\MyStdPeriod.m ......\MyTri.m ......\MyWhiteNoise.m ......\myexpsin1_6.m ......\myimpuse1_5.m ......\mysin1_1.m ......\mysquare1_3.m ......\mystperiod1_4.m ......\mytri1_2.m ......\mywhitenoise1_7.m