方法： 1 lr_save_string 该函数主要是将程序中的常量或变量保存为lr中的参数 2 lr_eval_string 从...
Flutter TextField输入字符转成list列表 无法remove? 我正常添加了TextField控件,监听输入 onChange(value){ List<String> list = value.split(''); print('pre is ' + list.toString()); list.removeAt(1); //list.removeRange(0,1); print('result is ' + list.toString()); } remove后面的print始...
key}):super(key:key);@overrideState<StatefulWidget>createState(){return_TextFieldRemovePaddingTestState();}}class_TextFieldRemovePaddingTestStateextendsState<TextFieldRemovePaddingTest>{@overrideWidgetbuild(BuildContext context){returnScaffold(body:Center(child:Container(width:200,color:Colors.blue,child:co...