void test::s1()
{
if(Q2=="0")
Q2="1";
else
{
Q2=third->lineEdit->text();
Q2.append('1');
}
third->lineEdit->setText(Q2);
}
请问一下想把函数改成
void s1(QLineEdit *lineEdit){
if(Q2=="0")
Q2="1";
else
{
Q2=lineEdit->text();
Q2.append('1');
}
lineEdit->setText(Q2);
}
但是connect(third->b1,SIGNAL(clicked()),this,SLOT(s1(third->lineEdit)));说SLOT没信号，求大神帮帮忙吧
