QT function a lot, I can't remember the commonly used, also don't know function takes several parameters inside, very strange, sometimes only one, sometimes two or three, senior and does not recommend the use of QT designer, to do, everybody to help me, thank you very much, such as: QMessageBox: : information (this, tr (" Calculator "), tr (" long!" )); QString STR=((QPushButton *) sender ()) - & gt; The text (); MainLayout=new QVBoxLayout (this, 20); TopLayout=new QHBoxLayout (mainLayout, 30); Edit=new QLineEdit (this, "edit"); Edit - & gt; SetAlignment (Qt: : AlignRight); These are the simple calculator source program in the excerpts, I looked at these functions do not understand, how to do

CodePudding user response:

Down there is no way, commonly used in the document that is not common to check again