我们能否在画布中保存图片。就像这个JSFiddle演示的那样。
我希望以这样的方式保存图片,气球应该浮在图片上方。
$(document).ready(function() {
var d_canvas = document.getElementById('canvas');
var context = d_canvas.getContext('2d');
var background = document.getElementById('background');
var ballon = document.getElementById('ballon')
context.drawImage(background, 0, 0);
$('#ballon').draggable();
$('#draw').click(function() {
var $ballon = $('#ballon'),
$canvas = $('#canvas');
var ballon_x = $ballon.offset().left - $canvas.offset().left,
ballon_y = $ballon.offset().top - $canvas.offset().top;
context.drawImage(ballon, ballon_x, ballon_y);
$ballon.hide();
$(this).attr('disabled', 'disabled');
});
});