如题
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JS中的对象</title>
<script type="text/javascript">
function rand(di) {
var result="";
for(i=0;i<di;i++){
result=result+(Math.floor(Math.random()*10))
}
alert(result);
}
</script>
</head>
<body>
<form name="form">
<input type="text" name="digit">
<input type="button" value="生成" onclick="rand(form.digit.value)">
</form>
</body>
</html>
result=0可以啊
function rand(di) {
var result=0;
for(i=0;i<di;i++){
result=result+(Math.floor(Math.random()*10))
}
alert(result);
}