divideY method
divide-y -> 在垂直方向的子元素之间添加水平分隔线
Implementation
FlexBuilder divideY({Color? color, double? width, BorderStyle? style}) {
_divideX = false;
_divideY = true;
if (color != null) _divideColor = color;
if (width != null) _divideWidth = width;
// 注意:style 参数保留以便将来扩展,但目前 Flutter Container 不支持 BorderStyle
return this;
}