height property Null safety

double? height
final

高。如果只有 height,而没有 width,将获得一个垂直方向的虚线 如果同时有 widthheight,将获得一个虚线边框。

height. If there is only height and no width, you will get a dotted line in the vertical direction If there are both width and height, you will get a dotted border.

Implementation

final double? height;