import matplotlib.pyplot as plt
plt.rcParams['font.sans-serif']=['SimHei'] #用来正常显示中文标签
x=range(0,120)
y=[random.randint(20,35) for i in range(120)]
plt.figure(figsize=(20,8),dpi=80)#设置大小
plt.plot(x,y)
#修改xy轴刻度
_x=list(x)
_xtick_labels=["10点{}分".format(i) for i in range(60)]
_xtick_labels+=["11点{}分".format(i-60) for i in range(60,120)]
plt.xticks(_x[::3],_xtick_labels[::3],rotation=45)#字符串与数字一一对应
plt.show()
运行结果如下: