修改小说阅读器

**修改小说阅读器**

在本文中，我们将介绍如何修改一个简单的小说阅读器。这个阅读器可以读取txt格式的文件，并提供基本的功能，如前进、后退、保存当前位置等。

###1. 修改阅读器结构首先，我们需要修改阅读器的结构。我们将使用Python语言来实现这个阅读器。

import osclass NovelReader:
 def __init__(self, filename):
 self.filename = filename self.current_position =0 self.text = ""

 def read_file(self):
 with open(self.filename, 'r', encoding='utf-8') as f:
 self.text = f.read()

 def forward(self):
 if self.current_position < len(self.text):
 self.current_position +=1 def backward(self):
 if self.current_position >0:
 self.current_position -=1 def save_current_position(self):
 with open('current_position.txt', 'w') as f:
 f.write(str(self.current_position))

import tkinter as tkfrom novel_reader import NovelReaderclass GUI:
 def __init__(self):
 self.root = tk.Tk()
 self.novel_reader = NovelReader('novel.txt')
 self.novel_reader.read_file()

 self.text_area = tk.Text(self.root, height=50, width=80)
 self.text_area.pack()

 self.forward_button = tk.Button(self.root, text="前进", command=self.forward)
 self.forward_button.pack()

 self.backward_button = tk.Button(self.root, text="后退", command=self.backward)
 self.backward_button.pack()

 self.save_button = tk.Button(self.root, text="保存当前位置", command=self.save_current_position)
 self.save_button.pack()

 def forward(self):
 self.novel_reader.forward()
 self.text_area.delete(1.0, tk.END)
 self.text_area.insert(tk.END, self.novel_reader.text[:self.novel_reader.current_position])

 def backward(self):
 self.novel_reader.backward()
 self.text_area.delete(1.0, tk.END)
 self.text_area.insert(tk.END, self.novel_reader.text[:self.novel_reader.current_position])

 def save_current_position(self):
 self.novel_reader.save_current_position()

 def run(self):
 self.root.mainloop()

if __name__ == "__main__":
 gui = GUI()
 gui.run()

def save_current_position(self):
 with open('current_position.txt', 'w') as f:
 f.write(str(self.current_position))

if __name__ == "__main__":
 gui = GUI()
 gui.run()