Flutter TextField 限制只允许输入数字、小数、字母
Flutter TextField 限制只允许输入数字、小数、字母 - flutter教程 - IT逐梦人 http://www.fc-home.cn/article/57.html
【Flutter】五、Flutter之表单输入框——TextField_flutter textfield 验证_MAXLZ的博客-CSDN博客 https://blog.csdn.net/qq_33635385/article/details/100047341
keyboardType: TextInputType.number,
