.text()设置文本,.html()设置html, .val()设置值的使用
1,.text()设置文本,.html()设置html, .val()设置值的使用
<!DOCTYPE html> <html> <head> <title>home</title> <meta http-equiv="Content-Type" content="text/html"; charset="utf-8" /> <script type="text/javascript" src="js/jquery-1.11.3.js"></script> <script> $(document).ready(function(){ $("#btn1").click(function(){ // alert("test"); $("#test1").text("hello world!"); }); $("#btn2").click(function(){ $("#test2").html("<b>html content</b>"); }); $("#btn3").click(function(){ $("#test3").val("input content"); }); }); </script> </head> <body> <p id="test1">这是段落</p> <p id="test2">这里是内容</p> <p>Input field:<input type="text" id="test3" value="mouse"></p> <button id="btn1">设置文本</button> <button id="btn2">设置html</button> <button id="btn3">设置值</button> </body> </html>
2.使用.val()方法获取值
<!DOCTYPE html> <html> <head> <title></title> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <script type="text/javascript" src="js/jquery-1.11.3.js"></script> <script> $(function(){ $("button").click(function(){ alert("value:"+$("#test").val()); }); }); </script> </head> <body> <p>姓名:<input type="text" id="test" value="我是值"></p> <button>显示值</button> </body> </html>
3 .attr() 方法用于获取属性值
<!DOCTYPE html> <html> <head> <title></title> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <script type="text/javascript" src="js/jquery-1.11.3.js"></script> <script> $(function(){ $("button").click(function(){ alert($("#baidu").attr("href")); }); }); </script> </head> <body> <p><a href="http://www.baidu.com" id="baidu" >百度</a></p> <button>获取href属性值</button> </body> </html>