Windows QT程序配置删除网卡IP（qt删除所有断点）

1、Windows下可在CMD控制终端使用Dos命令对指定网卡进行IP配置，需要使用管理员权限打开CMD终端

往网卡添加IP主要有以下两种方法：

方法1：

netsh interface ip add address “网卡名称” IP 掩码 网关

方法2：

netsh interface ip set address \"网卡名称\" static IP 掩码 网关 

其中方法1是往指定网卡添加相应的IP地址，并不影响网卡原来的IP配置，方法2是将网卡重置后再添加IP。

删除网卡IP：

netsh interface ip delete address “网卡名称” IP 掩码 网关

2、Qt中的实现原理

头文件：

#include <QProcess>

.cpp文件：

    QProcess *process = new QProcess();
    QString cmd = "netsh interface ip set address ";
    cmd += "\"以太网\" ";
    cmd += "static ";
    cmd += "173.75.40.20";
    cmd += " 255.255.0.0 ";/*开启CMD进程，输入DOS指令*/
    process->start(cmd);
    /*等待CMD进程结束*/
    process->waitForFinished(); 

    QString cmd_add = "netsh interface ip add address ";
    cmd_add += "\"以太网\" ";
    cmd_add += "173.75.40.12";
    cmd_add += " 255.255.0.0 ";
    process->start(cmd_add);
    /*等待CMD进程结束*/
    process->waitForFinished();

    QString cmd_delete = "netsh interface ip delete address ";
    cmd_delete += "\"以太网\" ";
    cmd_delete += "173.75.40.12";
    cmd_delete += " 255.255.0.0 ";
    process->start(cmd_delete);
    /*等待CMD进程结束*/
    process->waitForFinished();

    delete process;
    process = NULL;