Qt——获取发送信号的对象，（如果有多个同类对象，调用一个槽函数，想知道是哪个对象调用的槽函数从而做出操作）

1、效果

 

 

 

 

2、部分参考代码

//轴向间隙
    connect(ui.lineEdit_axi_first_x, SIGNAL(editingFinished()), this, SLOT(_All_JianXi_LineEdit_slot()));
    connect(ui.lineEdit_axi_first_y, SIGNAL(editingFinished()), this, SLOT(_All_JianXi_LineEdit_slot()));
    connect(ui.lineEdit_axi_first_z, SIGNAL(editingFinished()), this, SLOT(_All_JianXi_LineEdit_slot()));
    connect(ui.lineEdit_axi_reference_x, SIGNAL(editingFinished()), this, SLOT(_All_JianXi_LineEdit_slot()));
    connect(ui.lineEdit_axi_reference_y, SIGNAL(editingFinished()), this, SLOT(_All_JianXi_LineEdit_slot()));
    connect(ui.lineEdit_axi_reference_z, SIGNAL(editingFinished()), this, SLOT(_All_JianXi_LineEdit_slot()));
    connect(ui.lineEdit_axi_inner_radius, SIGNAL(editingFinished()), this, SLOT(_All_JianXi_LineEdit_slot()));
    connect(ui.lineEdit_axi_outer_radius, SIGNAL(editingFinished()), this, SLOT(_All_JianXi_LineEdit_slot()));
}

void DuoJi_GridFenHua::_All_JianXi_LineEdit_slot()// 所有的间隙网格 输入框槽函数
{
    qDebug() << QString::fromLocal8Bit("输入框编辑完成！ ");
    QLineEdit* lineEdit = qobject_cast<QLineEdit*>(sender());
    qDebug() << QString::fromLocal8Bit("当前输入框对象是： ")<<lineEdit->objectName();
    qDebug() << QString::fromLocal8Bit("输入框的内容是： ") << lineEdit->text();
    
}