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Jquery uses the val method to read and write value_jquery

WBOYOriginal: 2016-05-16 15:58:301389browse

The example in this article describes how Jquery uses the val method to read and write value values. Share it with everyone for your reference. The details are as follows:

<!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></title>
<script src="jquery-1.6.2.min.js" type="text/javascript"></script>  
<script type="text/javascript">
$(function () {
  $("#btnTest").click(function () {
    //----1.读取value的值
    alert($("#btnTest").val());      
    //----2.设置value的值
    $("#btnTest").val("我是修改后的文本");
  });
});
</script>
</head>
<body>
<input id="btnTest" type="button" value="我是原始文本" />
</body>
</html>

I hope this article will be helpful to everyone’s jQuery programming.

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