PDOStatement::columnCount PDOStatement::columnCount — 返回结果集中的列数。 (PHP 5 = 5.1.0, PECL pdo = 0.2.0) 说明 语法 int PDOStatement::columnCount ( void ) 使用PDOStatement::columnCount 如果没有结果集，则PDOStatement::columnCount()返回 0。 实例 计算列数 下面例子演示如何使用 PDOStatement::columnCount() 操作一个结果集和一个空集。 <? ; $sth = $dbh- prepare("SELECT name, colour FROM fruit"); /* 计算一个（不存在）的结果集中的列数 */ $colcount = $sth- columnCount
curBottomIndex = (rowCount - 1) * columnCount; initializedBottomIndex = curBottomIndex; ; curBottomIndex = (curBottomIndex + content.childCount) - columnCount; ~= 0 then rowCount = math.ceil( content.childCount/columnCount ); curBottomIndex = ( rowCount - 1)*columnCount; initializedBottomIndex = curBottomIndex; end oneBlockHeight ; curBottomIndex = (curBottomIndex + content.childCount) - columnCount;
= columnNames.count(); int valueCount = values.count(); if (columnCount == 0 || valueCount = = 0 || columnCount ! = 0 || columnCount ! = 0 || columnCount ! = 0 || columnCount !
length <= 2) { return 0; } int rowCount = heightMap.length; int columnCount = heightMap[0].length; boolean[][] visited = new boolean[rowCount][columnCount]; PriorityQueue [i][0] = true; queue.offer(new Position(i, 0, heightMap[i][0])); visited[i][columnCount -1] = true; queue.offer(new Position(i, columnCount-1, heightMap[i][columnCount-1])); } for (int i = 1 ; i < columnCount ; i++) { visited[0][i] = true; queue.offer
public static class Builder { private Context context; private List<FiltModel listData; private int columnCount ){ this.columnCount = columnCount; return this; } public Builder setColorBg(int color){ colorBg = context.getResources 配置列 第一个参数是起始列标 第二个参数是占几列 title（筛选类型）应该占满整行，so - 总列数 GridLayout.Spec columnSpec = GridLayout.spec(0,columnCount ){ List<FiltModel.TableMode tabs = model.getTabs(); for (int i = 0; i < tabs.size(); i++){ if (i % columnCount ) + (size % columnCount 0 ?
interface WaterfallFlowLayout : UICollectionViewFlowLayout // 总列数 @property (nonatomic, assign) NSInteger columnCount marginX = self.minimumInteritemSpacing; //最小左右间距 CGFloat itemWidth = (contentWidth - marginX * (self.columnCount - 1)) / self.columnCount; // 计算布局属性 [self computeAttributesWithItemWidth:itemWidth]; } ]; // 初始化 for (int i = 0; i < self.columnCount; i++) { columnHeight[i] = self.sectionInset.top CGFloat min = CGFLOAT_MAX; NSInteger column = 0; // 循环列高数组 for (int i = 0; i < self.columnCount
sql, QSqlDatabase::database(connName)); tableView->setModel(queryModel); //依次设置列标题列宽 int columnCount = tableView->model()->columnCount(); int nameCount = columnNames.count(); columnCount = columnCount nameCount : columnCount; QList<QString> columnNames = this->columnNames; QList<int> columnWidths this->columnWidths; //根据设置添加新列,将对应新列的标题名称和宽度按照索引位置插 if (insertColumnIndex >= 0) { columnCount queryModel->insertColumn(insertColumnIndex); } //设置列标题和列宽度 for (int i = 0; i < columnCount
QWidget #endif { Q_OBJECT Q_PROPERTY(int space READ getSpace WRITE setSpace) Q_PROPERTY(int columnCount QList<QPushButton *> btns; QStringList colors; int space; //按钮之间的间隔 int columnCount << "#A878B1" << "#A72185" << "#934787" << "#804E9A" << "#7B5882" << "#714588"; space = 2; columnCount ) { if (this->columnCount ! = columnCount) { this->columnCount = columnCount; this->initBtn(); } } void ColorPanelBtn
tempViews = [tempViews arrayByAddingObject:tempView]; } } NSInteger columnCount = warpCount; NSInteger rowCount = tempViews.count % columnCount == 0 ? tempViews.count / columnCount : tempViews.count / columnCount + 1; MAS_VIEW *prev; for ( = 0 && i-columnCount >= 0) { make.top.equalTo(((MAS_VIEW *)tempViews[i-columnCount = rowCount - 1) { make.top.equalTo(((MAS_VIEW *)tempViews[i-columnCount]).mas_bottom)
_clrText:=..table.array(owner.count,owner.columnCount,0); owner. _clrTextBk:=..table.array(owner.count,owner.columnCount,0xffffff); if(!owner. _clrText[owner.count+1]=..table.array(owner.columnCount,data.color:0); owner. _clrText[owner.count+1]=table.array(owner.columnCount,0); table.mixin(owner. _clrTextBk[owner.count+1]=..table.array(owner.columnCount,0xffffff); table.mixin(owner.
content = scrollRect.content; contentGridLayoutGroup = content:GetComponent(UI.GridLayoutGroup); columnCount ((content.rect.width - contentGridLayoutGroup.spacing.x)/contentGridLayoutGroup.cellSize.x); if columnCount ~= 0 then rowCount = math.ceil( content.childCount/columnCount ); curBottomIndex = ( rowCount - 1)*columnCount; initializedBottomIndex = curBottomIndex; end oneBlockHeight contentGridLayoutGroup.spacing.y; local contentSizeDeltaY = math.floor( oneBlockHeight * (math.ceil(maxItemCount / columnCount
//获取查询结果所有的行数 int columnCount = sqlite3_column_count(statement); NSLog(@"columnCount = % d", columnCount); //columnCount = 4 3. sqlite3_column_type()这个函数会返回相应列上数据的类型代码。 sqlite3 *) database WithStatement: (sqlite3_stmt *) statement { 3 4 //获取查询结果所有的行数 5 int columnCount = sqlite3_column_count(statement); 6 7 NSLog(@"columnCount = %d", columnCount); 8
rs, int rowNum) throws SQLException { ResultSetMetaData rsmd = rs.getMetaData(); int columnCount = rsmd.getColumnCount(); Map<String, Object> mapOfColValues = createColumnMap(columnCount); * @param columnCount the column count, to be used as initial * capacity for the Map * ) { return new LinkedCaseInsensitiveMap<Object>(columnCount); } /** * Determine new HashSet<String>() : null); for (int index = 1; index <= columnCount; index++) {
Map<Integer, Integer> map; Random r; int rowCount; int columnCount; int = n_cols; flipCount = rowCount * columnCount; } public int[] flip() { int randomIndex map.put(randomIndex, map.getOrDefault(flipCount, flipCount)); return new int[]{value/columnCount , value%columnCount}; } public void reset() { map.clear(); flipCount = rowCount * columnCount; }
columnHeights; /** 每一行之间的间距*/ -(CGFloat)rowMargin; /** 每一列之间的间距*/ -(CGFloat)columnMargin; /** 列数*/ -(NSInteger)columnCount columnMarginInWaterFlowLayout:self]; } else { return YJDefaultColumeMargin; } } -(NSInteger)columnCount self.maxColumnHeight = 0; [self.columnHeights removeAllObjects]; for (NSInteger i = 0; i < self.columnCount //设置布局属性的frame CGFloat w = (collectionW - self.edgeInsets.left - self.edgeInsets.right - (self.columnCount CGFloat minColumnHeight = [self.columnHeights[0] doubleValue]; for (NSInteger i = 1; i < self.columnCount
breakPoint] } }) return count }, [windowWidth, columnsCountBreakPoints]) return columnCount } 动态定义 style columnCount，实现根据屏幕宽度自适应列数： const { columnsCountBreakPoints } = props const columnCount 实现代码 export const getColumnsSortWithHeight = ( children: React.ReactNode, columnCount: number ) = const columns: { height: number children: React.ReactNode[] }[] = Array.from({ length: columnCount ].children.push(child) columns[index % columnCount].height += child.props.height return
来谈谈model如何实现. 1.QabstractTableModel常用功能 QAbstractTableModel子类化时，必须覆写: Int rowCount(); //返回显示的行数 int columnCount 或者在刷新之后,emit dataChanged(index(0,0),index(rowCount,columnCount))来进行刷新视图 3.model排序之重写sort方法 首先需要调用QtableView public slots: void UpdateData(void); private: QList<QVector<QString> * > m_data; int m_columnCount QDebug> CustomModel::CustomModel(QAbstractTableModel *parent) : QAbstractTableModel(parent) { m_columnCount (const QModelIndex &parent) const //列 { Q_UNUSED(parent) return m_columnCount; } QVariant
autoHeight; //高度自动拉伸 QList<QWidget *> widgets; //设备面板对象集合 int columnCount getWidgets(); int getColumnCount(); public Q_SLOTS: void setWidget(QList<QWidget *> widgets, int columnCount ) { this->widgets = widgets; this->columnCount = columnCount; int row = 0; int column column); widget->setVisible(true); column++; index++; if (index % columnCount QSizePolicy::Expanding, QSizePolicy::Minimum); gridLayout->addItem(hSpacer, 0, gridLayout->columnCount
阵列的小图片 * @param rowCount * @param columnCount * @param bitmap * @return */ private List<Bitmap> <Bitmap>(); int subWidth = bitmap.getWidth() / columnCount; int subHeight = bitmap.getHeight( bitmap.getHeight() - subHeight * i : subHeight; int width = j == columnCount - 1 ? int maxColumn = Math.max(subView.getChildCount() , columnCount); LinearLayout.LayoutParams 那么继续直到最后一列也完全翻转过来，那么第一列实际翻转了mSpace * (columnCount - 1) + 180。
dt = new DataTable("order"); //将word表格中的数据导入Datable DataColumn column; for (int i = 0; i < table.ColumnCount table.RowCount; i++) { newRow = dt.NewRow(); Row row = table.Rows[i]; for (int j = 0; j < table.ColumnCount dt = new DataTable("order"); DataColumn column; for (int i = 0; i < table.ColumnCount = dt.NewRow(); Row row = table.Rows[i]; for (int j = 0; j < table.ColumnCount
扫码关注腾讯云开发者
领取腾讯云代金券
云服务器
即时通信 IM
网站备案
对象存储
实时音视频
