如何在这里修改图片大小?:
var image = new Image();
image.src = 'http://www.ziiweb.com/images/logo.png';
image.width = 200; //this is not modifying the width of the image
$('canvas').css({
background: 'url(' + image.src + ')'
});
<script src="https://ajax.googleapis.
当在绿色圆圈上触发"mouseenter“事件时,控制台中打印出1,在蓝色圆圈上触发时,控制台中打印出2。请注意,当鼠标进入绿色圆圈时,1将精确打印一次。当鼠标进入蓝色圆圈时,圆圈内的任何鼠标移动都会导致2被打印出来。
var gr = document.getElementById("greenOne");
var bl = document.getElementById("blueOneCopy");
gr.onmouseenter = function() {gr.parentNode.appen