代码示例：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<script>
var a=1
var n=1
while(a<=10){
n = n*a
a++
}
console.log(n)
do {
var b= prompt("你爱不爱我")
}while(b !== "yes")
alert("我也爱你")
</script>
</body>
</html>
标签：do,示例,代码,while,循环,var From： https://www.cnblogs.com/xu529/p/16997433.html