快速生成20条Python数据行

1.

name = "John"
age = 25
print(f"My name is {name} and I am {age} years old.")

Output:

My name is John and I am 25 years old.

2.

x = 5
y = 7
print(f"The sum of {x} and {y} is {x + y}.")

Output:

The sum of 5 and 7 is 12.

3.

text = "Hello World"
print(f"The length of the text is {len(text)} characters.")

Output:

The length of the text is 11 characters.

4.

num_list = [1, 2, 3, 4, 5]
squared_list = [num**2 for num in num_list]
print(f"The squared list is {squared_list}.")

Output:

The squared list is [1, 4, 9, 16, 25].

5.

string_list = ["apple", "banana", "cherry"]
uppercase_list = [word.upper() for word in string_list]
print(f"The uppercase list is {uppercase_list}.")

Output:

The uppercase list is ['APPLE', 'BANANA', 'CHERRY'].

6.

import random
random_number = random.randint(1, 10)
print(f"The random number is {random_number}.")

Output (example):

The random number is 7.

7.

import datetime
current_date = datetime.date.today()
print(f"The current date is {current_date}.")

Output (example):

The current date is 2022-08-05.

8.

fruits = {"apple": 0.75, "banana": 0.50, "cherry": 1.25}
print(f"The price of an apple is {fruits['apple']} dollars.")

Output:

The price of an apple is 0.75 dollars.

9.

def add_numbers(a, b):
    return a + b

result = add_numbers(3, 4)
print(f"The result of adding 3 and 4 is {result}.")

Output:

The result of adding 3 and 4 is 7.

10.

def is_even(number):
    return number % 2 == 0

print(f"Is 6 an even number? {is_even(6)}.")

Output:

Is 6 an even number? True.

11.

class Rectangle:
    def __init__(self, length, width):
        self.length = length
        self.width = width
    
    def calculate_area(self):
        return self.length * self.width

rectangle = Rectangle(4, 5)
area = rectangle.calculate_area()
print(f"The area of the rectangle is {area}.")

Output:

The area of the rectangle is 20.

12.

import math
radius = 3
circumference = 2 * math.pi * radius
print(f"The circumference of a circle with radius {radius} is {circumference}.")

Output:

The circumference of a circle with radius 3 is 18.84955592153876.

13.

file_path = "data.txt"
with open(file_path, "r") as file:
    lines = file.readlines()

print(f"The contents of the file are: {lines}.")

Output:

The contents of the file are: ['Line 1
', 'Line 2
', 'Line 3
'].

14.

import os
current_directory = os.getcwd()
print(f"The current directory is {current_directory}.")

Output (example):

The current directory is /Users/username/Documents.

15.

import requests
response = requests.get("https://api.example.com/data")
data = response.json()
print(f"The data received from the API is: {data}.")

Output:

The data received from the API is: {"name": "John", "age": 25}.

16.

import numpy as np
array = np.array([1, 2, 3, 4, 5])
mean = np.mean(array)
print(f"The mean of the array is {mean}.")

Output:

The mean of the array is 3.0.

17.

import pandas as pd
data = {'Name': ['John', 'Alice', 'Bob'],
        'Age': [25, 30, 35]}
df = pd.DataFrame(data)
print(f"The dataframe is:
{df}.")

Output:

The dataframe is:
    Name  Age
0   John   25
1  Alice   30
2    Bob   35

18.

import matplotlib.pyplot as plt
x = [1, 2, 3, 4, 5]
y = [10, 8, 6, 4, 2]
plt.plot(x, y)
plt.xlabel('x')
plt.ylabel('y')
plt.title('Line Plot')
plt.show()

Output:

This code will generate a line plot using the matplotlib library.

19.

import seaborn as sns
iris = sns.load_dataset("iris")
sns.pairplot(iris)
plt.show()

Output:

This code will generate a pair plot of the Iris dataset using the seaborn library.

20.

import tensorflow as tf
x = tf.constant(5)
y = tf.constant(3)
sum = tf.add(x, y)
with tf.Session() as sess:
    result = sess.run(sum)
print(f"The sum of 5 and 3 is {result}.")

Output:

The sum of 5 and 3 is 8.

这些例子涵盖了Python中常见的数据操作和库的使用，包括字符串处理、数值计算、列表操作、文件读写、日期处理、网络请求、数据分析和可视化等方面。希望这些例子能够帮助你快速理解和应用Python编程。