mainAxisSpacing: 10.0, //纵向之间的距离
padding: EdgeInsets.all(10),
// childAspectRatio:...width: 400,
height: 600,
color: Colors.grey,
child: Wrap(
spacing: 10, //横轴之间的间距...runSpacing: 10, //纵轴之间的间距
// alignment: WrapAlignment.spaceEvenly,
runAlignment...Column(
children: [
TextField(
maxLines: 4, //设置多行文本框...decoration: InputDecoration(
hintText: "请输入密码",
),
// 监听文本框的值变化