matplotlib中文坐标轴和标题显示

#-*- coding:utf-8 -*-
import numpy as np
from scipy import stats
import matplotlib.pyplot as plt
from pylab import *
import matplotlib.mlab as mlab
import xlrd
import xdrlib,sys
import xlwt
import datetime
import  time
import requests
import os

mpl.rcParams['font.sans-serif']=['SimHei']
mpl.rcParams['axes.unicode_minus']=False