python matplotlib中文乱码解决

import pandas as pd
import numpy as np
import jieba as jb
import matplotlib 
import matplotlib.pyplot as plt
matplotlib.use('qt4agg')
#指定默认字体
matplotlib.rcParams['font.sans-serif'] = ['SimHei']
matplotlib.rcParams['font.family']='sans-serif'
#解决负号'-'显示为方块的问题
matplotlib.rcParams['axes.unicode_minus'] = False
with open("C:/Users/F.S.Z/Desktop/数据挖掘/去重后:招聘信息.csv") as f:
    data=pd.read_csv(f)
    data=np.array(data)
    b=[]
    c=[]
    x=[]
    y=[]
    for i in data:
        b.append(i[7])
    b=set(b)
    for i in range(len(b)):
        c.append(0)
    d=dict(zip(b,c))
    for i in data:
        d[i[7]]+=1
    e=sorted(d.items(),key=lambda x:x[1],reverse=True)
    for i in e:
        x.append(i[0])
        y.append(i[1])
    plt.plot(x[:5],y[:5])
    #显示每个点的值
    for i,j in zip(x[:5],y[:5]):
        plt.text(i,j,j,ha='center', va= 'bottom',fontsize=11)
    plt.show()

结果:
python matplotlib中文乱码解决