#include "form5.h"
#include "ui_form5.h"

Form5::Form5(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Form5)
{
    ui->setupUi(this);
}

Form5::~Form5()
{
    delete ui;
}

void Form5::on_addBtn_clicked()
{
    ui->listWidget->addItem(ui->lineEdit->text());

}

void Form5::on_getBtn_clicked()
{
  QString selectedContent =  ui->listWidget->currentItem()->text();
  QMessageBox::information(this,"选中",selectedContent);
}

void Form5::on_clearBtn_clicked()
{
    ui->listWidget->clear();
}

void Form5::on_delBtn_clicked()
{
    // currentItem() 获取当前选定的项目
    QListWidgetItem *item = ui->listWidget->currentItem();
    // takeItem() 通过索引删除行
    ui->listWidget->takeItem(ui->listWidget->row(item));

    delete item; //释放项目所占的内存
}