部分透明的散点图，但带有纯色条

from pylab import *; scatter(range(10), arange(0, 100, 10), c=range(10), alpha=0.2); color_bar = colorbar()

color_bar.set_alpha(1); draw()

ColorBar

color_bar.set_alpha(1)
color_bar.draw_all()
# pylab.draw() or pyplot.draw() might be necessary

fig1 = pylab.figure()
fig2 = pylab.figure()
ax1 = fig1.add_subplot(111)
ax2 = fig2.add_subplot(111)
ax1.scatter(range(10), range(10), c=range(10), alpha=0.2)
im = ax2.scatter(range(10), range(10), c=range(10), alpha=1.0)
fig1.colorbar(im, ax=ax1)
fig1.show()