Python文件IO

有如下文本内容，文件路径为D:\temp，文件名称为lyric.txt，

line1 Look ! line2 If U had one shotline3 One opportunityline4 To seize everything U ever wantedline5 One momentline6 Would U capture it ? line7 Or just let it slip

1. 逐行读取，并输出

   #coding=utf-8 import osfile_path = r‘D:\temp‘file_name = ‘lyric.txt‘#拼接文件路径与名称file_URI = os.path.join(file_path,file_name)print("file_URI--  " + file_URI)fd = open(file_URI, mode=‘r‘)#逐行读取文件内容for line in fd:    #输出每行内容，每行行尾有换行符号    print(line)

   输出结果，单独输出每行，包含此行的换行符： 

2. file_URI--  D:\temp\lyric.txtline1 Look ! line2 If U had one shotline3 One opportunityline4 To seize everything U ever wantedline5 One momentline6 Would U capture it ? line7 Or just let it slip

   
   
   

3. read()，读取全部内容

   #coding=utf-8 import osfile_path = r‘D:\temp‘file_name = ‘lyric.txt‘file_URI = os.path.join(file_path,file_name)print("file_URI--  " + file_URI)fd = open(file_URI, mode=‘r‘)content = fd.read()print(content)

   输出结果

   file_URI--  D:\temp\lyric.txtline1 Look ! line2 If U had one shotline3 One opportunityline4 To seize everything U ever wantedline5 One momentline6 Would U capture it ? line7 Or just let it slip

    

4. readlines()，读取全部内容，返回每行内容作为元素的列表

   #coding=utf-8 import osfile_path = r‘D:\temp‘file_name = ‘lyric.txt‘file_URI = os.path.join(file_path,file_name)print("file_URI--  " + file_URI)fd = open(file_URI, mode=‘r‘)content_list = fd.readlines()print(content_list)

   输出结果

   file_URI--  D:\temp\lyric.txt[‘line1 Look ! \n‘, ‘line2 If U had one shot\n‘, ‘line3 One opportunity\n‘, ‘line4 To seize everything U ever wanted\n‘, ‘line5 One moment\n‘, ‘line6 Would U capture it ? \n‘, ‘line7 Or just let it slip‘]

    

Python文件IO