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@@ -1,2 +1,34 @@
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+
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# pygraphviz
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+
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+'''
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+pip install pygraphviz
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+
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+
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+
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+import pygraphviz as pgv
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+
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+G = pgv.AGraph(directed=True, strict=False, nodesep=0, ranksep=1.2, rankdir="TB",
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+ splines="none", concentrate=True, bgcolor="write",
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+ compound=True, normalize=False, encoding='UTF-8')
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+
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+G.add_node(name, label=None, fontname="Times-Roman", fontsize=14,
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+ shape="ellipse", style="rounded", color="black", fontcolor="black",
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+ pos="x,y(!)", fixedsize=False, width=1, height=1)
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+
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+G.add_nodes_from(names, **attr) # 批量添加点，参数同上
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+
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+
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+G.add_edge(origin, target, color="black", style="solid", penwidth=1,
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+ label="", fontname="Times-Roman", fontsize=14, fontcolor="black",
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+ arrowsize=1, arrowhead="normal", arrowtail="normal", dir="forward")
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+
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+G.add_nodes_from([[origin_1, target_1],
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+ [origin_2, target_2],...], **attr) # 批量添加线，参数同上
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+
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+G.layout()
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+G.draw(file_name, prog="neato")
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+'''
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+
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+
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