<!--输入框输入字符后弹出对话框--> <head> <script type="text/javascript"> // Firefox, Google Chrome, Opera, Safari, Internet Explorer from version 9 function OnInput (event) { alert (event.target.value); } // Internet Explorer function OnPropChanged (event) { if (event.propertyName.toLowerCase () == "value") { alert (event.srcElement.value); } } </script> </head> <body> <input type="text" oninput="OnInput (event)" onpropertychange="OnPropChanged (event)" value="input something" /><br> </body> <!--根据按键跳转到网页--> <script type="text/javascript"> function enterHandler() { var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode; if (keyCode == 65) { window.location.href=‘http://www.baidu.com‘; } } </script> <body onkeydown="enterHandler()"> <a href=https://www.runoob.com/tags/html-ascii.html>ASCII字符对应序号</a>，如：A对应65，按下按键A，跳转网页。<br> </body> <!--在线读取文件内容--> <!DOCTYPE html> <html> <head> <title>文件示例</title> <meta name="name" content="content" charset="gb2312"> </head> <body> <input type="file" id="file" /> <input type="button" onclick="readText()" value="File Button"> <div id="tt"> </div> </body> </html> <script charset="utf-8"> window.onload=function () { if(typeof(FileReader)=="undefined") { alert("你的浏览器不支持文件读取"); document.write(""); }else { alert("你的浏览器支持文件读取"); } } function readText() { var file=document.getElementById("file").files[0]; var reader=new FileReader(); reader.readAsText(file); reader.onload=function(data) { var tt=document.getElementById("tt") tt.innerHTML=this.result; } } </script>
原文：https://www.cnblogs.com/chenxiehan/p/12585159.html