Python折线图_plt.text(x,y,text,ha='center',va='bottom',fontsize

# -*-coding:gb2312-*-
import matplotlib.pyplot as plt
import numpy as np
 
# 中文乱码问题
plt.rcParams['font.sans-serif']=['SimHei']
plt.rcParams['axes.unicode_minus']=False
 
 
x = np.array(['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sept','Oct','Nov','Dec'])
y1 = np.array([0,0,0,0,0,7896,5235,5235,4569,4568,4562,9564])
y2 = np.array([2562,2235,2569,2895,1235,2568,2895,2145,2854,1256,2632,1458])
 
# marker="o",设置断点为实点,markerfacecolor='none'代表线条穿过实点
plt.plot(x,y1,color="red",marker="o",markerfacecolor='none')
plt.plot(x,y2,color="black",marker="o",markerfacecolor='none')
 
# 标注数值
for a, b in zip(x, y1):
    plt.text(a, b, b, ha='center', va='bottom', fontsize=10)
 
for a, b in zip(x, y2):
    plt.t