标签：htm doctype lang char his set var tle ext
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <input type="checkbox" name=""> <input type="checkbox" name=""> <input type="checkbox" name=""> <input type="text" name="" value="请填写..."> </body> <script type="text/javascript" src="js/jquery-3.2.1.js"></script> <script type="text/javascript"> $(function(){ $("input[type=‘checkbox‘]").prop("checked",true); $("input[type=‘checkbox‘]:eq(2)").prop("disabled",true); $(‘input[type=text]‘).focus(function(){ var mozhi=$(this).val(); if(mozhi==‘请填写...‘){ $(this).val(‘‘) } }); $(‘input[type=text]‘).blur(function(){ var thisval=$(this).val(); if(thisval==‘‘){ $(this).val("请填写..."); } }) }) </script> </html>
标签：htm doctype lang char his set var tle ext
原文地址：http://www.cnblogs.com/jinsuo/p/7340788.html
