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<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
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<body>
<script>
// 闭包应用 计算打车价格
// function fn(){
// }
var car = (function() {
var start = 13; // 起步价
var total = 0; // 总价
return {
// 正常的价格
price: function(n) {
if (n <= 3) {
total = start;
} else {
total = start + (n - 3) * 5;
}
return total;
},
// 拥堵之后的价格
yd: function(flag) {
return flag ? total + 10 : total;
}
}
})();
console.log(car.price(5)); // 23
console.log(car.yd(true)); // 33
console.log(car.price(1)); // 13
console.log(car.yd(false)); // 13
</script>
</body>
</html>