ForHeart

分类

/ 注册

TA的专栏 153篇文章 32人订阅

进阶高级测试工程师

142篇文章 1902人学习

AI自动测试化入门到精通

11篇文章 1292人学习

全部文章（共158篇）

题解 | 按照等级递增序查看牛客网用户信息

import pandas as pd pd.set_option('display.width',300) pd.set_option('display.max_columns',None) pd.set_option('display.max_rows',None) df = pd.read_...

2025-02-24

0 67

题解 | 某店铺消费最多的前三名用户

import pandas as pd df = pd.read_csv('sales.csv') print(df.sort_values(by='monetary',ascending=False).head(3).reset_index(drop=True))

2025-02-24

0 71

题解 | 使用正规方程的线性回归

import numpy as np def linear_regression_normal_equation( X: list[list[float]], y: list[float] ) -> list[float]: # 实现代码 X_transpose =...

2025-02-24

0 222

题解 | 牛客网最多的用户等级

import pandas as pd df = pd.read_csv('Nowcoder.csv') print(pd.DataFrame(df['Level'].mode(),columns=['Level']))

2025-02-24

0 109

题解 | 用户常用语言有多少

import pandas as pd df = pd.read_csv('Nowcoder.csv') num = df['Language'].nunique() print(num,df['Language'].unique(),sep='\n')

2025-02-24

0 71

题解 | 牛客网用户等级的中位数

import pandas as pd df = pd.read_csv('Nowcoder.csv') sub = df[df['Num_of_exercise']>10] print(int(sub['Level'].median()))

2025-02-24

0 69

题解 | Python用户的平均提交次数

import pandas as pd df = pd.read_csv('Nowcoder.csv') sub_df = df[df['Language'] == 'Python'] tmp_df = sub_df['Number_of_submissions'].mean() print...

2025-02-24

0 61

题解 | 牛客网用户最近的最长与最短连续签到天数

import pandas as pd df = pd.read_csv('Nowcoder.csv') long_day = df['Continuous_check_in_days'].max() short_day = df['Continuous_check_in_days'].min...

2025-02-24

0 72

题解 | 牛客网不同语言使用人数

import pandas as pd Nowcoder = pd.read_csv("Nowcoder.csv", sep=",") print(Nowcoder.Language.value_counts())

2025-02-24

0 69

题解 | 两份用户信息表格中的查找

import pandas as pd pd.set_option('display.width',300) pd.set_option('display.max_rows',None) pd.set_option('display.max_columns',None) item1 = pd.r...

2025-02-24

0 65