从OS.Walk中仅打印/列出OS中的5个条目 [英] print/list only 5 entries from OS.Walk in python

问题描述

我的目标-使用OS Walk时仅列出5个条目.到目前为止，我只能获得使用OS.Walk找到的所有内容的列表，或者仅列出一个条目.(通过使用return函数)

My Goal - To list only 5 entries when using OS walk. So far I have only been able to get a list of everything that I find using OS.Walk or only list one entry. (By using the return function)

我的代码:导入操作系统导入子进程

My code: import os import subprocess

def playmusic(name):
    for root, dirs, files in os.walk('E:\\', followlinks=True):
        for file in files:
            if name in file:
                vlc='C:/Program Files/VideoLAN/VLC/vlc.exe'
                music=str(os.path.join(root,file))
                print(music)
                #subprocess.Popen([vlc, music])
                #return
    print("Finish")
    input()
try:
    s=raw_input("name: ")
    playmusic(s)
except Exception as e:
    print(e)
    print("Error")

结果:

=== RESTART: C:\Users\VGMPC2\Documents\testing scripts\search and print.py ===
name: test
E:\Nes\Jordan Vs Bird\3 Point Contest.mp4
E:\Nes\Jordan Vs Bird\Slam Dunk Contest.mp4
E:\playlist\Action&Adventuretest.xspf
E:\playlist\schedule test 2.xspf
E:\Snes\Lufia II\The Greatest Thieves.mp4
E:\Symbolic playlists\Nintendo Generation\3 Point Contest.mp4
E:\Symbolic playlists\Nintendo Generation\Slam Dunk Contest.mp4
Finish

如果有什么办法只显示5个而不是整个列表，那将是很棒的！我尝试使用len()，但是在弄清楚如何在os walk搜索中使用它时遇到了麻烦.我会说最大的事情就是 music = str(os.path.join(root，file))，因为我相信该搜索会如此.

If there is any way to only show 5 instead of the whole list that would be great! I tried using len() but I was having trouble figuring out how to use it with the os walk search. I would say the biggest thing is the music=str(os.path.join(root,file)) as that does the search I believe.

任何想法将不胜感激.谢谢您的宝贵时间，

Any ideas would be appreciated. Thank you for your time,

推荐答案

尝试一下:

def playmusic(name):
    for root, dirs, files in os.walk('E:\\', followlinks=True):
        for file in files[0:5]: #You show the first five only
            if name in file:
                vlc='C:/Program Files/VideoLAN/VLC/vlc.exe'
                music=str(os.path.join(root,file))
                print(music)
                #subprocess.Popen([vlc, music])
                #return
    print("Finish")
    input()
try:
    s=raw_input("name: ")
    playmusic(s)
except Exception as e:
    print(e)
    print("Error")

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