摘要：
import numpy as np import pandas as pd x = pd.Series([1, 3, 5, np.nan]) print(x) 阅读全文
摘要：
import as pd import numpy as np import matplotlib.pyplot as plt #df.to_excel('C:Users/history/Desktop/Python成绩.xlsx', sheet_name='dfg') df = pd.read_excel('C:/Users/history/Desktop/Python成绩.xlsx',... 阅读全文