查詢的條件控制元件

//檢索欄位的返回值型別
QHBoxLayout* horizontalLayout_7 = new QHBoxLayout();
horizontalLayout_7->setSpacing(6);
horizontalLayout_7->setObjectName(QString::fromUtf8("horizontalLayout_7"));
QLabel* label_param4 = new QLabel(groupBox_3);
label_param4->setObjectName(QString::fromUtf8("label_param4"));
label_param4->setMinimumSize(QSize(60, 0));
label_param4->setMaximumSize(QSize(60, 16777215));
label_param4->setSizeIncrement(QSize(60, 0));
label_param4->setBaseSize(QSize(60, 0));
horizontalLayout_7->addWidget(label_param4);

//檢索結果返回的欄位
comboBox_return_fields = new QComboBox(groupBox_3);
comboBox_return_fields->setObjectName(QString::fromUtf8("comboBox_return_fields"));
horizontalLayout_7->addWidget(comboBox_return_fields);

//返回的欄位型別（最大值、最小值、平均值、差值）
comboBox_return_type = new QComboBox(groupBox_3);
comboBox_return_type->setObjectName(QString::fromUtf8("comboBox_return_type"));
horizontalLayout_7->addWidget(comboBox_return_type);