绿皮哥布林

1.通过src属性调用js文件 welcome1.html My Second Script script02.js window.onload = writeMessage; function writeMessage(){ document.getElementById("helloMessage").innerHTML = "Hello,wor

welcome09.html 621# About these girls script09.js window.onload = initAll; function initAll(){ document.getElementById("ChenDan").onclick = say

1.通过prompt()提示用户作出响应 welcom5.html Test prompt() You can input your answer. script05.js var ans=prompt("Are you sure you want to do that?"); if(ans){ alert("You said "+ans); } el

代码如下 hiahiahia Welcome var a=document.getElementById('a'); alert(a!==null);// ==>true /* ===表示绝对相等，!==是否表示不绝对相等 例如：null != undefined // 返回false null !== undefined // 返回true

1.用try和case处理错误 welcome10.html Square root window.onload = initAll; function initAll(){ var ans = prompt("Please enter a number bigger than 0: ") // 如果不加【,""】，则输入框会出现un

1.html A Simple Rollover script1.css body{ background-color: #FFF; } img{ border-width: 0; } img#arrow,imag#arrowImg{ width:147px; height: 82px; } #button1,#button2{ wid