matplotlib.pyplot.figure(num=None, figsize=None, dpi=None, facecolor=None, edgecolor=None, frameon=True, FigureClass=<class 'matplotlib.figure.Figure'>, **kwargs)
Creates a new figure.
生成一个新的图像
Parameters:
num : integer or string, optional, default: none
If not provided, a new figure will be created, and the figure number will be incremented. The figure objects holds this number in a number attribute. If num is provided, and a figure with this id already exists, make it active, and returns a reference to it. If this figure does not exists, create it and returns it. If num is a string, the window title will be set to this figure’s num.
figsize : tuple of integers, optional, default: None
width, height in inches. If not provided, defaults to rc figure.figsize.
dpi : integer, optional, default: None
resolution of the figure. If not provided, def