JavaScript 定义式函数和变量式函数
//定义式function func(){alert("定义式：one");}func();function func(){alert("定义式：two");}func();</script><script type="text/javascript">//变量式var func = function (){alert("变量式：one");}func();var func = function func(){alert("变量式：two");}func();</script><script type="text/javascript">//先定义式后变量式function func(){alert("先定义式后变量式：定义式");}func();var func = function func(){alert("先定义式后变量式：变量式");}func();</script><script type="text/javascript">//先变量式后定义式var func = function func(){alert("先变量式后定义式：变量式");}func();function func(){alert("先变量式后定义式：定义式");}func();</script>