求大神帮助两道Python题？

2024-11-20 01:48:50

推荐回答（2个）

回答1：

3.1题

df1 = pd.read_csv('num.text',sep=',header=None)

df1.columns = ['N']

print(df1[df1.N > 0 ].shape[0],df1[df1.N == 0 ].shape[0],df1[df1.N < 0 ].shape[0])

3.2题目

from random import 颂冲randint, seed

seed(8)

output = []

for i in range(100):

穗樱伍output.append(random.randint(10,99))

df2 = pd.Dataframe(output, columns = 猜或['N'])

df2.to_csv('d:\num1.txt')

df2 = pd.read_csv('d:\num1.txt')

df2 = df2.sort_values(by='N')

df2.to_csv('d:\num2.txt')

回答2：

截图蚂孝嫌闷手慎悄内容