求助哪里出問(wèn)題！！
<!DOCTYPE? HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>函數(shù)</title>
<script type="text/javascript">
function hou(x,y)
//定義函數(shù)
{??
??? if(x>y){
??????? return x;
??? }else if(x==y){
??????? return "xiangdeng";
??? }else{
??????? return y;
??? }
??? }
//函數(shù)體，判斷兩個(gè)整數(shù)比較的三種情況
?
//調(diào)用函數(shù)，實(shí)現(xiàn)下面兩組數(shù)中，返回較大值。
? document.write(" 5 和 4 的較大值是:"+hou(5,4)"<br>");
? document.write(" 6 和 3 的較大值是:"+hou(6,3) );
</script>
</head>
<body>
</body>
</html>
2016-01-11
??document.write("?5?和?4?的較大值是:"+hou(5,4)"<br>");這句話huo(5,4)后面少了個(gè)“+”加號(hào)。應(yīng)該是這樣
??document.write("?5?和?4?的較大值是:"+hou(5,4)+"<br>");2016-01-11
?document.write(" 5 和 4 的較大值是:"+hou(5,4)？"<!-- <br>");問(wèn)號(hào)處少寫了個(gè)加號(hào)