function?y=myconv（hx）?
n=length（x）;??
k=length（h）;??????%定義序列長度?
for?m=1:1:（n-1）???????
????A（m）=0;????????
end
for?m=n:1:n+k-1??????
????A（m）=h（m-n+1）;?%給h序列添（n-1）個0?
end
B=hankel（A）;
????for?i=1:1:n??????
????????C（:i）=B（:i）;%抽取B矩陣中從第1列到第n列的矩陣
????end
????D=flipl