Table

Table简介

一个表格布局的widget（暂时没写demo，后续补上）

Table属性概要

Table({
  Key key,
  this.children = const <TableRow>[],
  this.columnWidths,
  this.defaultColumnWidth = const FlexColumnWidth(1.0),
  this.textDirection,
  this.border,
  this.defaultVerticalAlignment = TableCellVerticalAlignment.top,
  this.textBaseline,
})