1 js和java中的不定参数
小案列（js)
<!doctype html>
<html>
<head>
<script>
function add(){
sum=0;
for( var i=0;i<arguments.length;i++){
sum=sum+arguments[i];
}
return sum;
}
alert(add(1,3,5));
</script>
</head>
<body>
<body>
</html>
小案列（java)
public class Test{ public static void main(String[] args){ show("a","b"); show("a","b","c"); show("a","b","c","d"); show("a","b","c","d","e"); } public static void show(String...args){ for(String s: args){ System.out.print(s+" "); } System.out.println(); } }