%%?----電壓驟降----
%?fs=5120;%采樣率;
%?f0=50;%電網基波頻率;
function?signal=zhoujiang（fsf0t1t2amp）
????n_1=0:t1*fs-1;
????n_2=t1*fs:t2*fs-1;
????n_3=t2*fs:10/f0*fs-1;
??