TextArea也是一个多行文本编辑器。TextArea相比texttedit，增加了占位符文本，并添加了样式定义。 

import QtQuick
import QtQuick.Window
import QtQuick.ControlsWindow {id: winwidth: 800height: 600visible: trueTextArea {id: taanchors.centerIn: parentplaceholderText: qsTr("请在这里输入文本...")background: Rectangle {border.color: "red"}}
}

给TextArea加一个滚动条：

import QtQuick
import QtQuick.Window
import QtQuick.ControlsWindow {id: winwidth: 800height: 600visible: trueScrollView {id: viewwidth: 100height: 100TextArea {id: taplaceholderText: qsTr("请在这里输入文本...")background: Rectangle {border.color: "red"}}}
}