import datetime from matplotlib import dates import matplotlib.dates as mdates import matplotlib.pyplot as plt dateList=['2022-01-01','2022-01-02','2022-01-04','2022-01-05','2022-01-08','2022-01-11'] yList=[1,3,4,6,5,8] dateNumList=[dates.date2num(datetime.datetime.strptime(x,'%Y-%m-%d')) for x in dateList] #转换为数字格式 fig,ax=plt.subplots() locator=mdates.AutoDateLocator(minticks=3,maxticks=7) #括号内的两个参数可以调正刻度的数量 formatter=mdates.ConciseDateFormatter(locator) ax.xaxis.set_major_locator(locator) ax.xaxis.set_major_formatter(formatter) ax.plot(dateNumList,yList)
效果如下: