python 生成六宫的数独题每一宫里有2*3个格子并画出相应的方格导出到pdf

生成数独题可以使用回溯算法，主要思路是在每个格子中填入一个数字，然后检查是否符合数独的规则，如果符合则递归到下一个格子，否则回溯到上一个格子重新填数字。具体实现可以参考以下代码：

import random
from typing import List
from reportlab.pdfgen import canvas

# 生成数独题
def generate_sudoku() -> List[List[int]]:
    # 初始化数独矩阵
    sudoku = [[0] * 6 for _ in range(6)]
    # 回溯算法填充数字
    def backtrack(row: int, col: int) -> bool:
        if col == 6:
            col = 0
            row += 1
        if row == 6:
            return True
        candidates = list(range(1, 7))
        random.shuffle(candidates)
        for num in candidates:
            if num not in sudoku[row] and num not in [sudoku[i][col] for i in range(6)] \
                    and num not in [sudoku[i][j] for i in range(row//2*2, row//2*2+2) for j in range(col//3*3, col//3*3+3)]:
                sudoku[row][col] = num
                if backtrack(row, col+1):
                    return True
        sudoku[row][col] = 0
        return False
    backtrack(0, 0)
    return sudoku

# 绘制数独题
def draw_sudoku(sudoku: List[List[int]]):
    c = canvas.Canvas("sudoku.pdf")
    c.setFont("Helvetica", 20)
    cell_width = 30
    cell_height = 30
    margin_x = 50
    margin_y = 700
    for i in range(6):
        for j in range(6):
            c.rect(margin_x + j * cell_width, margin_y - i * cell_height,
                   cell_width, cell_height)
            if sudoku[i][j]:
                c.drawString(margin_x + j * cell_width + cell_width / 2 - 5,
                              margin_y - i * cell_height - cell_height / 2 - 5,
                              str(sudoku[i][j]))
    c.save()

if __name__ == "__main__":
    sudoku = generate_sudoku()
    draw_sudoku(sudoku)

这段代码中，generate_sudoku() 函数使用回溯算法生成数独题目，draw_sudoku() 函数使用 reportlab 库绘制数独题目并导出到 pdf 文件中。

绘制六宫格子可以使用 reportlab 库中的 rect() 方法绘制矩形。具体实现可以参考以下代码：

import random
from typing import List
from reportlab.pdfgen import canvas

# 生成数独题
def generate_sudoku() -> List[List[int]]:
    # 初始化数独矩阵
    sudoku = [[0] * 6 for _ in range(6)]
    # 回溯算法填充数字
    def backtrack(row: int, col: int) -> bool:
        if col == 6:
            col = 0
            row += 1
        if row == 6:
            return True
        candidates = list(range(1, 7))
        random.shuffle(candidates)
        for num in candidates:
            if num not in sudoku[row] and num not in [sudoku[i][col] for i in range(6)] \
                    and num not in [sudoku[i][j] for i in range(row//2*2, row//2*2+2) for j in range(col//3*3, col//3*3+3)]:
                sudoku[row][col] = num
                if backtrack(row, col+1):
                    return True
        sudoku[row][col] = 0
        return False
    backtrack(0, 0)
    return sudoku

# 绘制数独题
def draw_sudoku(sudoku: List[List[int]]):
    c = canvas.Canvas("sudoku.pdf")
    c.setFont("Helvetica", 20)
    cell_width = 30
    cell_height = 30
    margin_x = 50
    margin_y = 700
    for i in range(6):
        for j in range(6):
            c.rect(margin_x + j * cell_width, margin_y - i * cell_height,
                   cell_width, cell_height)
            if sudoku[i][j]:
                c.drawString(margin_x + j * cell_width + cell_width / 2 - 5,
                              margin_y - i * cell_height - cell_height / 2 - 5,
                              str(sudoku[i][j]))
    # 绘制六宫格子
    c.setLineWidth(1)
    for i in range(3):
        for j in range(2):
            x = margin_x + j * 3 * cell_width
            y = margin_y - i * 2 * cell_height
            c.rect(x, y, 3 * cell_width, 2 * cell_height)
    c.save()

if __name__ == "__main__":
    sudoku = generate_sudoku()
    draw_sudoku(sudoku)

这段代码中，draw_sudoku() 函数在绘制数独题目的基础上，使用 rect() 方法绘制了六宫格子。其中，setLineWidth() 方法设置线条宽度。