#encoding:utf-8
#树节点格式的全局变量
decisionNode = dict(boxstyle = "sawtooth",fc="0.8");
leafNode = dict(boxstyle = "round4",fc = "0.8");
arrow_args = dict(arrowstyle = " <- ");
#画树时的全局变量
x0ff = 0;
y0ff = 0;
totalW = 0;
totalD = 0;
ax = None;
