小试牛刀：VS Code+CodeBuddy初体验

# -*- coding: utf-8 -*-
import matplotlib.pyplot as plt
#报错No module named 'matplotlib'
# To fix the error, run: pip install matplotlib

import numpy as np

import matplotlib
matplotlib.rcParams['font.sans-serif'] = ['SimHei']  # Use SimHei font for Chinese characters
matplotlib.rcParams['axes.unicode_minus'] = False  # Ensure minus sign displays correctly


#出抛物线了，但一直libpng warning: iCCP: known incorrect sRGB profile# 能出抛物线了，但一直libpng warning: iCCP: known incorrect sRGB profile

# 定义抛物线函数 y = ax^2 + bx + c
def parabola(x, a=1, b=0, c=0):
    return a * x**2 + b * x + c

# Get user input for coefficients a, b, and c
a = float(input("Enter coefficient a for the parabola (default is 1): ") or 1)
b = float(input("Enter coefficient b for the parabola (default is 0): ") or 0)
c = float(input("Enter coefficient c for the parabola (default is 0): ") or 0)

# 生成x值
x_values = np.linspace(-20, 20, 400)
# 计算y值，这里使用默认参数a=1, b=0, c=0，即y=x^2

# Calculate y values using the user-provided coefficients
y_values = parabola(x_values, a, b, c)

# 绘制抛物线
plt.figure(figsize=(8, 6))


# Update the plot label to reflect the new equation
plt.plot(x_values, y_values, label=f'y = {a}x^2 + {b}x + {c}')

# 添加标题和轴标签
plt.title('初中抛物线曲线')
plt.xlabel('x')
plt.ylabel('y')

# 添加图例
plt.legend()

# 显示网格
plt.grid(True)

# 显示图像
plt.show()

# -*- coding: utf-8 -*-
for i in range(1, 10):
    for j in range(1, i + 1):
        print(f"{j}×{i}={i * j}", end="\t")
    print()

# -*- coding: utf-8 -*-
import random

def generate_arithmetic_problems(count=100, max_num=20, problems_per_page=20):
    problems = []
    for _ in range(count):
        a, b = random.randint(1, max_num), random.randint(1, max_num)
        op = random.choice(['+', '-'])
        if op == '-' and a < b:
            a, b = b, a
        problems.append(f"{a} {op} {b} = ")
    
    for i in range(0, len(problems), problems_per_page):
        page = problems[i:i + problems_per_page]
        print("\n".join(page))
        if i + problems_per_page < len(problems):
            input("Press Enter to continue...")

generate_arithmetic_problems()