qt QHBoxLayout详解

insertWidget(int , QWidget *, int , Qt::Alignment )：**在布局的指定位置插入一个子控件。

#include

#include

#include

#include

#include

#include

class MyWidget : public QWidget {

public:

MyWidget() {

QHBoxLayout *layout = new QHBoxLayout(this);

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QLabel *label = new QLabel("Name:", this);

layout->addWidget(label);

QLineEdit *lineEdit = new QLineEdit(this);

layout->addWidget(lineEdit);

QPushButton *button = new QPushButton("Submit", this);

layout->addWidget(button);

layout->setSpacing(10); // 设置控件间距

layout->setContentsMargins(5, 5, 5, 5); // 设置边距

setLayout(layout);

}

};

int main(int argc, char *argv[]) {

QApplication app(argc, argv);

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MyWidget widget;

widget.resize(300, 100);

widget.show();

return app.exec();

}