qt setSizePolicy

在中，setSizePolicy是一个函数，用于设置控件的大小策略。它接受两个参数，第一个参数表示水平扩展性，第二个参数表示竖直扩展性。默认情况下，控件是可扩展的。如引用中所示，在布局中使用setSizePolicy函数可以设置控件的扩展性。例如，pEditUp->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::fixed)表示将pEditUp控件的水平扩展性设置为可扩展，竖直扩展性设置为固定。引用中的代码还创建了一个QTextEdit控件pEditBottom，并设置其对齐方式为Qt::AlignCenter。在引用中也使用了setSizePolicy函数来设置wmp控件的扩展性为可扩展。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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