用jQuery将页面制成简单画板

$(function () {

$(document).on(‘mousedown‘, function (e) {

var e = e || window.event;

$(document).on(‘mousemove‘, function (e) {

var e = e || window.event;

var x = e.pageX;

var y = e.pageY;

$(‘<div></div>‘).css({

‘position‘: ‘absolute‘,

‘width‘: ‘5px‘,

‘height‘:‘5px‘,

‘borderRadius‘:‘50%‘,

‘left‘: x, ‘top‘: y })

.appendTo(‘body‘); $(‘div‘).css(‘background‘,

function Color() {

var r = parseInt(Math.random() * 256);

var g = parseInt(Math.random() * 256);

var b = parseInt(Math.random() * 256);

return "rgb(" + r + ‘,‘ + g + ‘,‘ + b + ")";

});

})

$(document).on(‘mouseup‘, function () {

$(document).off(‘mousemove‘).off(‘mouseup‘);

})

})

})

原文地址：https://www.cnblogs.com/huanxijiuhao/p/9215472.html