Python点滴积累

from matplotlib.figure import Figure

fig.add_subplot(111) 

# equivalent but more general 

fig.add_subplot(1,1,1)

 # add subplot with red background 

fig.add_subplot(212, axisbg='r') 

figure.add_subplot(338, axisbg='r')
如上所述“111”,"212","338"的含义：
xyz:对fig分割成x行*y列个格，显示在第Z格
英文解释：
These are subplot grid parameters encoded as a single integer.
For example, "111" means "1x1 grid, first subplot" and "234" means "2x3 grid, 4th subplot".
Alternative form for add_subplot(111) is add_subplot(1, 1, 1).