search
Homephp教程php手册如何批量清理系统临时文件(语言:C#、 C/C++、 php 、python 、java ),

如何批量清理系统临时文件(语言:C#、 C/C++、 php 、python 、java ),

语言之争由来已久,下面做一些IO实验(遍历9G多的文件,批量删除),尽量用事实来比较谁优谁劣。操作系统:win7 64 位,文件包大小:9.68G。

一、语言:C#

开发环境:vs 2013

代码总行数:43行

耗时:7秒

代码:

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace BatchDelete
{
class Program
{
static void Main(string[] args)
{
// 输入目录 e:\tmp
string path;
Console.WriteLine("输入要清理的目录:");
path = Console.ReadLine();
// 开始计时
Console.WriteLine("开始计时:"+DateTime.Now.ToString("HH:mm:ss"));
// 先遍历匹配查找再循环删除
if (Directory.Exists(path))
{
Console.Write("正在删除");
foreach (string fileName in Directory.GetFileSystemEntries(path))
{
if (File.Exists(fileName) && fileName.Contains("cachegrind.out"))
{
File.Delete(fileName);
}
}
Console.WriteLine("");
}
else
{
Console.WriteLine("该目录不存在!");
}
// 计时结束
Console.WriteLine("结束计时:" + DateTime.Now.ToString("HH:mm:ss"));
Console.ReadKey();
}
}
}

运行效果图:


二、语言:C/C++

开发环境:vs 2013

代码总行数:50行

耗时:36秒

代码:

#include <iostream>
#include <string>
#include <Windows.h>
#include <boost\filesystem\operations.hpp>
#include <boost\filesystem\path.hpp>
#include <boost\filesystem\convenience.hpp>
#include <boost\algorithm\string.hpp>
using namespace std;
int main(int argc, char * argv[])
{
// 输入目录 e:\tmp
string strPath;
cout << "输入要清理的目录:" << endl;
getline(cin, strPath);
// 开始计时 
SYSTEMTIME sys_time; //声明变量
GetLocalTime(&sys_time); //将变量值设置为本地时间
printf("开始计时:%02d:%02d:%02d\n", sys_time.wHour,sys_time.wMinute,sys_time.wSecond);
// 先遍历匹配查找再循环删除
namespace fs = boost::filesystem;
fs::path full_path(fs::initial_path());
full_path = fs::system_complete(fs::path(strPath, fs::native));
if (fs::exists(full_path))
{
cout << "正在删除" ;
fs::directory_iterator item_begin(full_path);
fs::directory_iterator item_end;
for (; item_begin != item_end; item_begin++)
{
if (!fs::is_directory(*item_begin))
{
if (fs::exists(item_begin->path()) && boost::contains(item_begin->path().string(), "cachegrind.out"))
{
fs::remove(item_begin->path());
}
}
}
cout << "" << endl;
}
else
{
cout << "该目录不存在!" << endl;
}
// 计时结束
GetLocalTime(&sys_time);
printf("计时结束:%02d:%02d:%02d\n", sys_time.wHour, sys_time.wMinute, sys_time.wSecond);
system("pause");
return 0;
}

运行效果图:


三、语言:PHP

开发环境:Phpstorm

代码总行数:32行

耗时:13秒

代码:

<&#63;php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 16-1-29
* Time: 上午9:31
*/
date_default_timezone_set('prc');
//输入目录 e:\tmp
$path = 'e:\tmp';
//开始计时
echo date("H:i:s",time()) . '<br/>';
//先遍历匹配查找再循环删除
if(is_dir($path))
{
echo "正在删除";
$mydir = dir($path);
while($file = $mydir->read())
{
if(file_exists("$path/$file") && strpos($file, 'cachegrind.out') === 0)
{
unlink("$path/$file");
}
}
echo '<br/>';
}
else
{
echo "该目录不存在!" . '<br/>';
}
//计时结束
echo date("H:i:s",time()) . '<br/>'; 

运行效果图:


四、语言:Java

开发环境:eclipse

代码总行数:43行

耗时:10秒

代码:

package com.yejing;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
// 输入目录 e:\tmp
String path = null;
System.out.println("输入要清理的目录:");
path = s.next();
// 开始计时
Date nowTime=new Date(); 
SimpleDateFormat time=new SimpleDateFormat("HH:mm:ss"); 
System.out.println("开始计时:"+ time.format(nowTime)); 
// 先遍历匹配查找再循环删除
File dir = new File(path);
if(dir.exists()){
System.out.print("正在删除");
File[] fs = dir.listFiles();
for(int i=0;i<fs.length;i++){
if(!fs[i].isDirectory()){
if(fs[i].isFile() && fs[i].exists() && fs[i].getName().contains("cachegrind.out"))
{
fs[i].delete(); 
}
}
}
System.out.println("");
}else{
System.out.println("该目录不存在!");
}
// 计时结束
nowTime=new Date(); 
System.out.println("开始计时:"+ time.format(nowTime)); 
}
}

运行效果图:

五、语言:Python 3.3.5

开发环境:IDLE

代码总行数:20行

耗时:10秒

代码:

# -*- coding: utf-8 -*- 
import datetime
import os
# 输入目录 e:\tmp
path = input("输入要清理的目录:\n");
# 开始计时
print("开始计时:",datetime.datetime.now().strftime('%H:%M:%S'));
# 先遍历匹配查找再循环删除
if(os.path.exists(path)):
print("正在删除");
for parent,dirnames,filenames in os.walk(path):
for filename in filenames:
targetFile = os.path.join(parent,filename)
if (os.path.isfile(targetFile) and "cachegrind.out" in targetFile):
os.remove(targetFile)

else:

print("该目录不存在!");
# 计时结束
print("结束计时:",datetime.datetime.now().strftime('%H:%M:%S')); 

运行效果图:

您可能感兴趣的文章:

  • PowerShell脚本清理指定天数前的临时文件夹实现代码
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Tools

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.