matlab 怎样画颜色渐变曲线,根据曲线数值大小设定颜色。

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t=[linspace(0,2*pi) nan];
x=sin(t);y=cos(2*t);z=sqrt(t);%所要绘碧陪制的曲线方悔塌蠢程
patch(x,y,z,z,'edgecolor','衫巧flat','facecolor','none')
view(3);grid on;colorbar

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