connect(ui->lineEdit, SIGNAL(returnPressed()), this, SLOT(slt_image_find())); // 连接信号
ui->lineEdit->setPlaceholderText("输入查找图片ID:"); // lineEdit 提示信息
// 把执行多线程的代码放到槽函数
void DefectFactoryInstance::slt_image_find()
{
QFuture<int> result = QtConcurrent::run(this,&DefectFactoryInstance::image_find); // 把函数 image_find 放入多线程
if(result == -1)
show_information(widget, tr("提示"), tr("查找图片不存在"));
else
ui->ShowImageList->setCurrentRow(ans);
}
int DefectFactoryInstance::image_find()
{
for(int i = 0; i < ui->ShowImageList->count(); i++){
if(ui->lineEdit->text().toInt() == ui->ShowImageList->item(i)->data(Qt::UserRole).toInt())
return i;
}
return -1;
}
// 把函数加入头文件(.h)
connect(this, SIGNAL(returnPressed()), ui->ShowImageList, SLOT(slt_image_find())); // 连接信号
ui->lineEdit->setPlaceholderText("输入查找图片ID:");
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