a value with width and height attributes
						The
						
size
						
						type refers to a value with has
						
width
						
						and
						
height
						
						属性。
					
						For example, to read the
						
width
						
						and
						
height
						
						values of the
						
							Image::sourceSize
						
						size-type property:
					
Column { Image { id: image; source: "logo.png" } Text { text: image.sourceSize.width + "," + image.sourceSize.height } }
						要创建
						
size
						
						value, specify it as a "width x height" string:
					
Image { sourceSize: "150x50" }
或使用 Qt.size() 函数:
Image { sourceSize: Qt.size(150, 50) }
						When integrating with C++, note that any
						
							QSize
						
						or
						
							QSizeF
						
						值
						
							passed into QML from C++
						
						is automatically converted into a
						
size
						
						value, and vice-versa. When a
						
size
						
						value is passed to C++, it is automatically converted into a
						
							QSizeF
						
						值。
					
另请参阅 QML 基本类型 .