僅供參考：
<!DOCTYPE?html>
<html?lang="en">
<head>
????<meta?charset="UTF-8">
????<meta?name="viewport"?content="width=device-width,?initial-scale=1.0">
????<meta?http-equiv="X-UA-Compatible"?content="ie=edge">
????<title>Document</title>
</head>
<body>
????
????<script?type="text/javascript">
????????function?compare(a,b){
????????????if(a==b){
????????????????return?a+"和"+b+"相等";
????????????}else?if(a>b){
????????????????return?a+"和"+b+"中較大值的值是:"+a
????????????}else{
????????????????return?a+"和"+b+"中較大值的值是:"+b
????????????}
????????}
????????document.write(compare(2,2)+'<br>');
????????document.write(compare(5,4)+'<br>');
????????document.write(compare(6,3)+'<br>');
????</script>
</body>
</html>
輸出結(jié)果：
2019-11-30
!DOCTYPE? HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>函數(shù)</title>
<script type="text/javascript">
//定義函數(shù)
function compare(x,y){
? ? max=x>y?x:y;
? ? return max;
}
//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:"+compare(5,4)+"<br>");
? document.write(" 6 和 3 的較大值是:"+compare(6,3) );?
</script>
</head>
<body>
</body>
</html>