使用 python-pptx 控制 PowerPoint 幻灯片标题字体大小

import tkinter as tk
from tkinter import filedialog
from pptx import Presentation
from pptx.util import Pt
import os

def create_presentation():
    # Open a file dialog to select a text file
    root = tk.Tk()
    root.withdraw()
    file_path = filedialog.askopenfilename()

    # Read the text file and get the slide titles
    with open(file_path) as f:
        slide_titles = f.read().splitlines()

    # Create a new PowerPoint presentation
    prs = Presentation()

    # Use the title and content slide layout (index 1)
    title_and_content_layout = prs.slide_layouts[1]

    # Add a slide for each title in the list
    for title in slide_titles:
        # Remove the leading hyphen or dash from the title
        title = title.lstrip('- ')
        slide = prs.slides.add_slide(title_and_content_layout)
        title_shape = slide.shapes.title
        title_shape.text = title

        # Correct way to change the font size
        text_frame = title_shape.text_frame
        text_frame.clear()  # Remove any existing paragraphs and runs
        p = text_frame.paragraphs[0] #Get the first paragraph
        run = p.add_run()
        run.text = title
        run.font.size = Pt(32) #Change the font size here


    # Get the directory of the input file
    dir_path = os.path.dirname(file_path)

    # Extract the filename from the file path
    file_name = os.path.basename(file_path)

    # Split the file name into base and extension
    base, ext = os.path.splitext(file_name)

    # Replace the extension with .pptx
    new_file_name = base + ".pptx"

    # Join the directory and the new file name
    output_path = os.path.join(dir_path, new_file_name)

    # Save the PowerPoint presentation
    prs.save(output_path)
    root.destroy()

create_presentation()