#给列表中每个元素加入标号
import datetime as dt import matplotlib.pyplot as plt from matplotlib import style import pandas as pd #import pandas_datareader.data as web a = [‘Mary‘, ‘had‘, ‘a‘, ‘little‘, ‘lamb‘] for i in range(len(a)): print(i , ‘.‘ ,a[i])
原文：https://www.cnblogs.com/medik/p/10989824.html