查找并提取每个文件中的每一行，然后将其替换

// 选择文件
const input = document.createElement('input');
input.type = 'file';
input.addEventListener('change', handleFileSelect);
document.body.appendChild(input);

// 处理文件选择
function handleFileSelect(event) {
  const file = event.target.files[0];
  const reader = new FileReader();

  reader.onload = function(event) {
    const fileContent = event.target.result;
    const replacedContent = replaceLines(fileContent);
    console.log(replacedContent);
  };

  reader.readAsText(file);
}

// 替换文件内容
function replaceLines(content) {
  // 使用正则表达式替换每一行的内容
  const replacedContent = content.replace(/.+/g, 'New Line');
  return replacedContent;
}

# 选择文件
import tkinter as tk
from tkinter import filedialog

root = tk.Tk()
root.withdraw()
file_path = filedialog.askopenfilename()

# 处理文件
with open(file_path, 'r') as file:
    file_content = file.read()
    replaced_content = replace_lines(file_content)
    print(replaced_content)

# 替换文件内容
def replace_lines(content):
    # 使用字符串替换函数替换每一行的内容
    replaced_content = '\n'.join(['New Line' for line in content.split('\n')])
    return replaced_content