python讀取csv文件繪制氣溫圖，x軸為日期，並填充顏色

 

代碼實現：

 

import csv

from matplotlib import pyplot as plt

from datetime import datetime

 

date=[]

airmax=[]

airmin=[]

with open(r'C:\Users\Administrator\Desktop\新建文本文檔 (3).csv') as cs:

    read=csv.reader(cs)

    header=next(read)

    for i in read:

        date.append(datetime.strptime(i[3],'%Y/%m/%d'))#datetime.strptime(),轉換成日期格式，第一個參數是所需的日期字符串，第二參數是告訴python如何設置字符串

        airmax.append(int(i[0]))

        airmin.append(int(i[1]))

    print(airmax)

    print(date)

fig=plt.figure(dpi=80,figsize=(10,6))       

plt.plot(date,airmax,c='red')

plt.plot(date,airmin)

fig.autofmt_xdate() #設置x軸日期自動適應占位，防止重疊

plt.fill_between(date,airmax,airmin,facecolor='yellow',alpha=0.1)#填充最大最小值區間的范圍，facecolor顏色，alpha色度深淺

plt.show()