例1x为向量时,plot(x) clear X=3576122415336972] plot(x)例1 x为向量时, plot(x) clear x=[3 5 7 6 12 24 15 33 6 9 7 2]; plot(x) 0 2 4 6 8 10 12 0 5 10 15 20 25 30 35