Python中string、json、bytes的相互转换

json->string

str = json.dumps(jsonobj)

bytes->string

str = str(bytes,‘utf-8’)

string->json

json = json.loads(str)

python中matplotlib学习

1.matplotlib官网api：https://matplotlib.org/3.3.1/api/index.html
2.Pyplot tutorial：https://matplotlib.org/3.3.1/tutorials/introductory/pyplot.html
3.examples ：https://matplotlib.org/3.3.1/gallery/index.html#pyplots-examples