本文實例講述了JavaScript實現的簡單拖拽效果。分享給大家供大家參考。具體實現方法如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>javascript拖拽</title> <style> .test{ text-align:center; width:300px; height:30px; line-height:30px; background:#f60; position:absolute; } .test:hover{ cursor:move; } </style> </head> <body> <script src="jquery-1.6.2.min.js"></script> <div class="test">jb51拖拽測試</div> <br/><br/> <h1>如果無效請刷新下頁面..</h1> <script> ;$(function(){ var isMove=false; $(".test").mousedown(function(){isMove=true;}).mouseup(function(){isMove=false;}); $(document).mousemove(function(e){ if(!isMove){return;}; var X=e.clientX-parseInt($(".test").width()/2); var Y=e.clientY-parseInt($(".test").height()/2); $(".test").css({"left":X,"top":Y,"cursor":"move"}); }); }); </script> </body> </html>
希望本文所述對大家的javascript程序設計有所幫助。