Python 多种方法获取文本文件行数

1. 使用len(file.readlines())：

   file_path = 'your_file.txt'
   with open(file_path, 'r') as file:
       line_count = len(file.readlines())
   print("方法1 - 文本文件的行数:", line_count)
   

2. 使用sum(1 for line in file)：

   file_path = 'your_file.txt'
   with open(file_path, 'r') as file:
       line_count = sum(1 for line in file)
   print("方法2 - 文本文件的行数:", line_count)
   

3. 逐行迭代计数：

   file_path = 'your_file.txt'
   line_count = 0
   with open(file_path, 'r') as file:
       for line in file:
           line_count += 1
   print("方法3 - 文本文件的行数:", line_count)
   

4. 使用wc命令（仅限Unix/Linux系统）：

   import subprocess
   
   file_path = 'your_file.txt'
   line_count = int(subprocess.check_output(["wc", "-l", file_path]).split()[0])
   print("方法4 - 文本文件的行数:", line_count)
   

5. 使用pandas库：

   import pandas as pd
   
   file_path = 'your_file.txt'
   df = pd.read_csv(file_path, header=None)
   line_count = len(df)
   print("方法5 - 文本文件的行数:", line_count)
   

作者：Pandas120