我想更改此代码,所以当我点击球时,它会变为红色。谁能帮我?我是java的新手: http://download.oracle.com/javafx/1.3/tutorials/ui/syntax/index.html
答案 0 :(得分:0)
试试这个:
import javafx.scene.Scene;
import javafx.scene.shape.Rectangle;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;
import javafx.scene.input.MouseEvent;
var circle: Circle;
Stage {
title: "Declaring Is Easy!"
scene: Scene {
width: 300
height: 250
content: [
circle = Circle {
centerX: 150 centerY: 120 radius: 80
fill: Color.MAROON
stroke: Color.INDIANRED
strokeWidth: 10.0
}, //Circle
Rectangle {
x: 25, y: 80 width: 250, height: 80
arcWidth: 20 arcHeight: 20
fill: Color.web("#6699ff")
stroke: Color.web("#003399")
strokeWidth: 5.0
onMouseClicked:function(e: MouseEvent)
{
if(circle.fill == Color.MAROON)
circle.fill = Color.GREEN
else
circle.fill = Color.MAROON
}
} //Rectangle
] //Content
} //Scene
} //Stage
这里有两处变化:
1)在变量(圆圈)中提取圆,以便以后使用
2)将鼠标单击事件添加到矩形,以翻转颜色。
答案 1 :(得分:0)
你只需要在这里将圆圈改为矩形
if(**circle**.fill == Color.MAROON)
**circle**.fill = Color.GREEN
else
**circle**.fill = Color.MAROON
}
if(**rectangle**.fill == Color.MAROON)
**rectangle**.fill = Color.GREEN
else
**rectangle**.fill = Color.MAROON
}
并在这句话中加入var rectangle:Rectangle;就像var circle: Circle;