JavaScript - LocalStorage加载我的号码时出错

Question

我想使用本地存储在javascript中保存我的号码。一切都很好，期待一件事... LocalStorage给了我奇怪的错误。例如，如果我保存6号，那么当我加载它时，我的代码开始变得非常奇怪。它给了我大约300毫克，然后它显示像3e ​​+ 123。继承我的代码：

var playerCoffeeCount = 3;
var playerMoneyCount = 0;
function save(){
    if (typeof(Storage) != "undefined"){
        localStorage.setItem("coffeeSaved", playerCoffeeCount);
        localStorage.setItem("moneySaved", playerMoneyCount);
    } else {
        alert("Sorry, your browser does not support local storage...");
    }
}
function load(){
    playerCoffeeCount = localStorage.getItem("coffeeSaved");
    playerMoneyCount = localStorage.getItem("moneySaved");
}