标签：html key 图片 leave com ESS div doctype set
1、鼠标事件
(1)鼠标单击：click
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>鼠标单击事件</title> <script type="text/javascript" src="../js/jquery-1.8.3.js" ></script> <script> $(function(){ $("#button").click(function(){ alert("按键被单击了！"); }); }); </script> </head> <body> <button id="button">请点击！</button> </body> </html>
（2）鼠标双击事件：dblclick
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>鼠标单击事件</title> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"> </script> <script> $(function(){ $("button").dblclick(function(){ alert("鼠标双击了！！"); }); }); </script> </head> <body> <button>请双击，以触发事件！</button> </body> </html>
（3）mouseenter鼠标移动到相应元素上的时候触发，mouseleave鼠标不在相应的元素上的时候触发：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>鼠标单击事件</title> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"> </script> <script> $(function(){ $("p").mouseenter(function(){ alert("鼠标移动到了段落上！"); }); $("p").mouseleave(function(){ alert("鼠标从段落上移开了！"); }); }); </script> </head> <body> <p>Just go. Just go. I just keep going until it feels right to me.</p> </body> </html>
(4)hover()：鼠标悬停在元素上的时候触发
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>鼠标悬停事件</title> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"> </script> <script> $(function(){ $("p").hover(function(){ $("p").css("background-color","red"); },function(){ $("p").css("background-color","yellow"); }); }); </script> </head> <body> <p>Just go. Just go. I just keep going until it feels right to me.</p> </body> </html>
2、键盘事件
(1)keypress()：按键被按下
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>鼠标悬停事件</title> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"> </script> <script> $(function(){ $("input").keypress(function(){ alert("有按键按下了！"); }); }); </script> </head> <body> <input type="text"> </body> </html>
（2）keyup()：按键抬起触发
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>按键事件</title> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"> </script> <script> $(function(){ $("input").keyup(function(){ alert("按键抬起了！"); }); }); </script> </head> <body> <input type="text"> </body> </html>
按下按键没有警告框，只有按键抬起的时候对话框才会出现。
（3）keydown()：按键按下有效
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>按键事件</title> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"> </script> <script> $(function(){ $("input").keydown(function(){ alert("按键按下了！"); }); }); </script> </head> <body> <input type="text"> </body> </html>
与keypress不同，keydown是一个过程，只有在按键按下的过程中才会有对话框出现，按键抬起对话框立即消失。
标签：html key 图片 leave com ESS div doctype set
原文地址：https://www.cnblogs.com/zhai1997/p/12236233.html
