摘要:
1.pandas基础 1.1 Series import pandas as pd import numpy as np 创建 ## 1.创建Series对象 sdata = pd.Series(np.arange(1,4), index=list('abc')) sdata a 1 b 2 c 3 阅读全文
摘要:
Python(四) 条件 if-elif-else x = 5 if x < 0: print("x小于0") elif x == 0: print("x等于0") else: print("x大于0") match-case def check_value(value): match value: 阅读全文