此方法将 HTML 特殊字符转换为它们的等效实体。
string.escapeHTML();
返回一个字符串。
<html> <head> <title>Prototype examples</title> <script type = "text/javascript" src = "/javascript/prototype.js"></script> <script> function showResult() { var str = '<div class = "article">This is an article</div>'; alert( str.escapeHTML() ); } </script> </head> <body> <p>Click the button to see the result.</p> <br /> <br /> <input type = "button" value = "Result" onclick = "showResult();"/> </body> </html>