基本布局QLayout的使用

一、基类选择QDialog，取消“创建界面”复选框的选中状态。
二、dialog.h中的代码

#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>

#include<QLabel>
#include<QLineEdit>
#include<QComboBox>
#include<QTextEdit>
#include<QGridLayout>

class Dialog : public QDialog
{
    
    
    Q_OBJECT

public:
    Dialog(QWidget *parent = nullptr);
    ~Dialog();
private:
    //左侧
    QLabel *UserNameLabel;
    QLabel *NameLabel;
    QLabel *SexLabel;
    QLabel *DepartmentLabel;
    QLabel *AgeLabel;
    QLabel *otherLabel;
    QLineEdit *UserNameLineEdit;
    QLineEdit *NameLineEdit;
    QComboBox *SexComboBox;
    QTextEdit *DepartmentTextEdit;
    QLineEdit *AgeLineEdit;
    QGridLayout *LeftLayout;
    //右侧
    QLabel *HeadLabel;
    QLabel *HeadIconLabel;
    QPushButton **UpdateHeadBtn;
    QHBoxLayout *TopRightLayout;

    QLabel *IntroductionLabel;
    QTextEdit *IntroductionTextEdit;
    QVBoxLayout *RightLayout;
    //底部
    QPushButton *OkBtn;
    QPushButton *CancelBtn;
    QHBoxLayout *ButtomLayout;
};
#endif // DIALOG_H

三、dialog.cpp中的代码

#include "dialog.h"

#include<QLabel>
#include<QLineEdit>
#include<QComboBox>
#include<QPushButton>
#include<QFrame>
#include<QGridLayout>
#include<QPixmap>
#include<QHBoxLayout>

Dialog::Dialog(QWidget *parent)
    : QDialog(parent)
{
    
    
    setWindowTitle(tr("UserInfo"));
    /***********左侧***********/
    UserNameLabel = new QLabel(tr("用户名："));
    UserNameLineEdit = new QLineEdit;
    NameLabel = new QLabel(tr("姓名："));
    NameLineEdit = new QLineEdit;
    SexLabel = new QLabel(tr("性别："));
    SexComboBox = new QComboBox;
    SexComboBox->addItem(tr("女"));
    SexComboBox->addItem(tr("男"));
    DepartmentLabel = new QLabel(tr("部门："));
    DepartmentTextEdit = new QTextEdit;
    AgeLabel = new QLabel(tr("年龄："));
    AgeLineEdit = new QLineEdit;
    otherLabel = new QLabel(tr("备注："));
    otherLabel->setFrameStyle(QFrame::Panel |
                              QFrame::Sunken);

    LeftLayout = new QGridLayout();
    LeftLayout->addWidget(UserNameLabel,0,0); // 用户名
    LeftLayout->addWidget(UserNameLineEdit,0,1);

    LeftLayout->addWidget(NameLabel,1,0); //姓名
    LeftLayout->addWidget(NameLineEdit,1,1);

    LeftLayout->addWidget(SexLabel,2,0); //性别
    LeftLayout->addWidget(SexComboBox,2,1);

    LeftLayout->addWidget(DepartmentLabel,3,0); //部门
    LeftLayout->addWidget(DepartmentTextEdit,3,1);

    LeftLayout->addWidget(AgeLabel,4,0); //年龄
    LeftLayout->addWidget(AgeLineEdit,4,1);

    LeftLayout->addWidget(otherLabel,5,0,1,2); //其他

    LeftLayout->setColumnStretch(0,1);
    LeftLayout->setColumnStretch(1,3);

    /*******右侧*******/
    HeadLabel = new QLabel(tr("头像："));
    HeadIconLabel = new QLabel;
    QPixmap icon("312.png");
    HeadIconLabel->setPixmap(icon);
    HeadIconLabel->resize(icon.width(),icon.height());
    UpdateHeadBtn = new QPushButton(tr("更新"));

    TopRightLayout = new QHBoxLayout();
    TopRightLayout->setSpacing(20);
    TopRightLayout->addWidget(HeadLabel);
    TopRightLayout->addWidget(HeadIconLabel);
    TopRightLayout->addWidget(UpdateHeadBtn);
    IntroductionLabel = new QLabel(tr("个人说明："));
    IntroductionTextEdit = new QTextEdit;

    RightLayout = new QVBoxLayout();
    RightLayout->setMargin(10);
    RightLayout->addLayout(TopRightLayout);
    RightLayout->addWidget(IntroductionLabel);
    RightLayout->addWidget(IntroductionTextEdit);

    /*******底部*******/
    OkBtn = new QPushButton(tr("确定"));
    CancelBtn = new QPushButton(tr("取消"));

    ButtomLayout = new QHBoxLayout();
    ButtomLayout->addStretch();
    ButtomLayout->addWidget(OkBtn);
    ButtomLayout->addWidget(CancelBtn);

    /*****************/
    QGridLayout *mainLayout = new QGridLayout(this);
    mainLayout->setMargin(15);
    mainLayout->setSpacing(10);
    mainLayout->addLayout(LeftLayout,0,0);
    mainLayout->addLayout(RightLayout,0,1);
    mainLayout->addLayout(ButtomLayout,1,0,1,2);
    mainLayout->setSizeConstraint(QLayout::SetFixedSize);
}

Dialog::~Dialog()
{
    
    
}

四、运行效果图