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. b6 p+ z; H% {" ?' P0 @' I实现代码$ z# j( m3 g! t( e, R
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- s=0.04
- x=rand(n,1)-0.5;
- y=rand(n,1)-0.5;
- h=plot(x,y,'.');
- axis([-1 1 -1 1])
- axis square
- grid off
- set(h,'EraseMode','xor','Markersize',12)
- while 1
- drawnow
- x=x+s*randn(n,1);
- y=y+s*randn(n,1);
- set(h,'XData',x,'YData',y)
- end9 E( W# G7 a2 ^+ s
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7 L+ W5 Y" { ~! v! M0 x输出结果, V- k0 c& s0 a& z4 U X
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