js函数可以先使用后定义

<SCRIPT LANGUAGE="JavaScript"> 

function hello(name){alert("hello " +name)}; 

</SCRIPT>

<SCRIPT LANGUAGE="JavaScript"> 

hello('www.openj.cn'); 

</SCRIPT> 

这样可以！

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<SCRIPT LANGUAGE="JavaScript"> 

hello('www.openj.cn'); 

</SCRIPT> 

<SCRIPT LANGUAGE="JavaScript"> 

function hello(name){alert("hello " +name)}; 

</SCRIPT>

分开写两个js标签里先调用后定义不行！！

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<SCRIPT LANGUAGE="JavaScript"> 

hello('www.openj.cn'); 

function hello(name){alert("hello " +name)}; 

</SCRIPT>

同意个js标签内可以先调用再定义

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