JS基础问题

<html>
<head>
<script language="JavaScript">
function hello(){
alert("Hello!");
</script>
</head>
<body>
<a href="" onMouseOver="hello()">链接</a>
</body>
</html><html>
<head>
<script language="JavaScript">
function getname(str){
alert("Hello"+str+"g");
</script>
</head>
<body>
请输入你的姓名:
<form>
<input type="text" name="name" onBlur="getname(this.value)" value="fgrg">
</form>
</body>
</html>
<html>
<head>
<script language="JavaScript">
function pushbutton(){
alert("嗨！好！");
</script>
</head>
<body>
<form>
<input type="button" name="button1" value="push me" onClick="pushbutton()">
</form>
</body></html>这3个东西咋啥效果也没有呢？alert啥也出不来！！！！

解决方案 »

  1.   

    修改............<html> 
    <head> 
    <script language="JavaScript"> 
    function hello(){ 
    alert("Hello!"); 
    }
    </script> 
    </head> 
    <body> 
    <a href="" onMouseOver="hello()">链接 </a> 
    </body> 
    </html> ---------------------------------------------------
    <html> 
    <head> 
    <script language="JavaScript"> 
    function getname(str){ 
    alert("Hello"+str+"g"); 
    }
    </script> 
    </head> 
    <body> 
    请输入你的姓名: 
    <form> 
    <input type="text" name="name" onBlur="getname(this.value)" value="fgrg"> 
    </form> 
    </body> 
    </html> 
    ------------------------------------------------
    <html> 
    <head> 
    <script language="JavaScript"> 
    function pushbutton(){ 
    alert("嗨！好！"); 
    }
    </script> 
    </head> 
    <body> 
    <form> 
    <input type="button" name="button1" value="push me" onClick="pushbutton()"> 
    </form> 
    </body> 
    </html>