- C/C++ code
#include "gotocell.h"#include "ui_gotocell.h"GoToCell::GoToCell(QWidget *parent) : QWidget(parent), ui(new Ui::GoToCell){ ui->setupUi(this); QRegExp regExp("[a-z]"); QRegExpValidator *regExpVali = new QRegExpValidator(regExp,this); lineEdit -> setValidator(regExpVali);}GoToCell::~GoToCell(){ delete ui;}void GoToCell::on_lineEdit_textChanged(){ butOk -> setEnabled(lineEdit -> hasAcceptableInput()); int i=0;}
一运行出现:内存不能为read的警告,这是怎么回事啊?高手帮忙看下,什么地方出问题了。
------解决方案--------------------
lineEdit 要先new 出来在使用;
- C/C++ code
[color=#FF0000]lineEdit = new QLineEdit[/color];lineEdit -> setValidator(regExpVali);()
------解决方案--------------------
------解决方案--------------------
lineEdit = new QLineEdit;