canvas画布实现手写签名效果的示例代码html5 利用canvas手写签名并保存的实现方法如何用canvas实现在线签名的示例代码Html5基于canvas实现电子签名并生成PDF文档

手写区
清除确定

 .mSign_signMark_box{padding: 15px 15px 26px 15px;} .mSign_signMark_footer{max-width:640px;margin:0 auto;height: 44px;background: #4ba7eb;position: fixed;bottom: 0;left: 0;right: 0;color:#fff;font-size: 16px;text-align: center;line-height: 44px;} .mSign_signMark_footer span{display: block;width: 50%;text-align: center;float: left;} .mSign_signMark_footer_cancle{background: #f4f4f5;color: #333333;} /*手写签名*/ .mSign_signMark_write_box{position: relative;height: 240px;} .mSign_signMark_body_box {position: absolute;background-color: #fff;border: 1px solid #ccc;top:0;left: 0;right: 0;bottom: 0;width: 99%;height: auto;min-width: 250px;min-height: 140px;} .mSign_signMark_body {position: absolute;left: 0;right: 0;top: 0;bottom: 0;} .mSign_signMark_body canvas {position: absolute;left: 0;top: 0;width: 100%;height: 100%;} .mSign_signMark_body p{position: absolute;font-size: 14px;color: #ccc;text-align: center;width: 100%;top: 50%;margin-top: -22px;} .mSign_signMark_clear_out{position: absolute;top:-10px;right: -5px;z-index: 10;display: none;} .mSign_signMark_clear_out img{width: 18px;height: 18px;} 

 //手写区触摸事件 $(function() { var ctouch=$('.mSign_signMark_body canvas'); ctouch.bind("touchstart",function(event){ $('.mSign_signMark_body p').hide(); }); ctouch.mouseover(function(event) { $('.mSign_signMark_body p').hide(); }); });