import matplotlib.pyplot as plt
在ipython中输入 plt.plot?
The following format string characters are accepted to control
the line style or marker:
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character description
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``‘-‘`` solid line style
``‘--‘`` dashed line style
``‘-.‘`` dash-dot line style
``‘:‘`` dotted line style
``‘.‘`` point marker
``‘,‘`` pixel marker
``‘o‘`` circle marker
``‘v‘`` triangle_down marker
``‘^‘`` triangle_up marker
``‘<‘`` triangle_left marker
``‘>‘`` triangle_right marker
``‘1‘`` tri_down marker
``‘2‘`` tri_up marker
``‘3‘`` tri_left marker
``‘4‘`` tri_right marker
``‘s‘`` square marker
``‘p‘`` pentagon marker
``‘*‘`` star marker
``‘h‘`` hexagon1 marker
``‘H‘`` hexagon2 marker
``‘+‘`` plus marker
``‘x‘`` x marker
``‘D‘`` diamond marker
``‘d‘`` thin_diamond marker
``‘|‘`` vline marker
``‘_‘`` hline marker
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The following color abbreviations are supported:
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character color
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‘b‘ blue
‘g‘ green
‘r‘ red
‘c‘ cyan
‘m‘ magenta
‘y‘ yellow
‘k‘ black
‘w‘ white
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原文：http://poseidon2011.blog.51cto.com/7553825/1900596