Qt 实现 IP 地址排序

最新推荐文章于 2024-10-21 19:34:13 发布

mabing993

最新推荐文章于 2024-10-21 19:34:13 发布

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分类专栏： Qt

本文链接：https://blog.youkuaiyun.com/mabing993/article/details/81255955

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对一个保存 IP 地址的 txt 文件进行排序，保存成新的 txt 文件。

参考：

IP地址排序、IP区段去重 - 优快云博客
https://blog.youkuaiyun.com/whz_zb/article/details/7409320

lastb.txt

36.2.209.189
113.108.44.11
113.172.123.18
41.236.206.196
171.228.163.78
177.125.22.129
86.57.137.167
14.191.233.250
14.169.216.75
111.40.119.29
36.110.10.178
177.125.21.200
14.207.171.207
186.101.208.89
113.161.61.8
113.174.40.131
200.34.232.202
180.183.247.237
186.67.220.29
111.85.220.242
14.169.221.117
181.39.198.40
190.214.218.22
197.50.81.77
184.82.192.118
197.251.179.206
124.232.146.42

main.cpp

#include "mainwindow.h"
#include <QApplication>
#include <QFile>
#include <QTextStream>
#include <QTextCodec>

bool compare(const int &num1, const int &num2)
{
    if (num1 < num2)
    {
        return true;
    }

    return false;
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    QFile file("lastb.txt");
    file.open(QIODevice::ReadOnly | QIODevice::Text);

    QStringList ips;
    QTextStream in(&file);
    while (!in.atEnd())
    {
        QString line = in.readLine();
        ips << line;
    }

    QList<int> first;
    QList<int> second;
    QList<int> third;
    QList<int> fourth;

    foreach (QString str, ips)
    {
        QStringList ip = str.split(".");
        int num1 = ip[0].toInt();
        int num2 = ip[1].toInt();
        int num3 = ip[2].toInt();
        int num4 = ip[3].toInt();

        if (!first.contains(num1))
        {
            first.append(num1);
        }

        if (!second.contains(num2))
        {
            second.append(num2);
        }

        if (!third.contains(num3))
        {
            third.append(num3);
        }

        if (!fourth.contains(num4))
        {
            fourth.append(num4);
        }
    }

    bool compare(const int &num1, const int &num2);
    qSort(first.begin(), first.end(), compare);
    qSort(second.begin(), second.end(), compare);
    qSort(third.begin(), third.end(), compare);
    qSort(fourth.begin(), fourth.end(), compare);

    QStringList ret;
    for (int index = 0; index < first.length(); ++index)
    {
        for (int index2 = 0; index2 < second.length(); ++index2)
        {
            for (int index3 = 0; index3 < third.length(); ++index3)
            {
                for (int index4 = 0; index4 < fourth.length(); ++index4)
                {
                    QString ip = QStringLiteral("%1.%2.%3.%4").arg(first[index]).arg(second[index2]).arg(third[index3]).arg(fourth[index4]);
                    if (ips.contains(ip))
                    {
                        ret << ip;
                    }
                }
            }
        }
    }

    QFile file2("lastb_sorted.txt");
    file2.open(QIODevice::WriteOnly | QIODevice::Text);

    QTextStream out(&file2);
    out.setCodec(QTextCodec::codecForName("UTF-8"));
    foreach (QString str, ret)
    {
        out << str << endl;
    }

    return a.exec();
}

lastb_sorted.txt

14.169.216.75
14.169.221.117
14.191.233.250
14.207.171.207
36.2.209.189
36.110.10.178
41.236.206.196
86.57.137.167
111.40.119.29
111.85.220.242
113.108.44.11
113.161.61.8
113.172.123.18
113.174.40.131
124.232.146.42
171.228.163.78
177.125.21.200
177.125.22.129
180.183.247.237
181.39.198.40
184.82.192.118
186.67.220.29
186.101.208.89
190.214.218.22
197.50.81.77
197.251.179.206
200.34.232.202